FREE UK DELIVERY ON ORDERS OVER £25
FREE UK DELIVERY ON ORDERS OVER £25
I bought this .20 HW100KT pre-owned late last year and after using it for a few weeks I decided to send it to hw100tuning - they removed the anti tamper, fitted a pro- fit hammer and spring , replaced the main valve (scratched?) and gave it a full service, a few months later I returned it to have one of their in- house 250bar Titanium cylinders and pre- chamber insert fitted. Steve has worked his magic and returned a gun that's become my "go to" favourite. Shot count has nearly doubled, power is extremely consistent for hunting, and I also take it FT shooting! Hw100tuning is the team I trust to get it done properly 👍 5 Star Service.
Pete 22nd August 2023
I'd just like to add my review, to the long list of five star reviews of HW100 tuning...I had the anti tamper removed. ..the original tube replaced by the larger titanium one... magazine release moved to the left hand side and gave full rein to upgrade anything they deemed fit. I asked them to do anything they would do to the rifle.... communication was easy and they are both friendly and approachable.... Luckily ,I live close by so was able to drop the gun off. This is how service should be....the gun can now outshoot me and the cost was extremely reasonable.. if you need your HW 110 bringing up to date do not hesitate in taking it to this company. Thanks for everything, both of you..
Stuart 26th March 2023
Just wanted to say thanks for the great work on my HW110. The reduced weight is really noticeable when out in the fields for a couple of hours, and the rifle is shooting very nicely with a flatter trajectory thanks to the extra power. I've been trying the QYS Domed pellets you suggested - they work fine on rabbits at my normal range of 35-40 metres or so and seem very consistent.
B.G. 7th March 2023
Having recently fitted your hammer assembly with AT removed to my HW110, I felt I should report back and thank you for supplying me with the above part. The removal and fitting was straight forward as was the power set up. My gun is now consistently shooting my preferred pellet at just under 12 ftlb and I now have the option to tune up or down if I change pellet make/weight. Its a shame it didnt come out of the factory like it!! I would definitely recommend this mod to all HW110 owners.
Thanks HW 100 tuning. One happy HW110 owner
James 10th February 2023
Had a HW100 and HW44 services and tuned. Both have come back excellent. Comms was great throughout. Highly recommended. Many Thanks.
Dan 25th January 2023
Contacted HW100 TUNING online after seeing recommendations from several online air gun forums and YouTube air gun reviews. From my first email i got a response detailing solutions to my query regarding my rifle.
The customer care i received was second to none, given options to send in or drop off my rifle was amazing as i could decide. What was outstanding to me was that, i was informed that my rifle was very new and what was needed to resolve my power issue, most people in the know take advantage of customers who dont know but Not HW100 TUNING, i recieved professional and honest feedback, which you don't get nowadays. Being treated like family this made me so happy.
I was given a collection date when my rifle would be finished, then received a delivery for the titanium air cylinder which i was happy for them to install and it didn't compromise my collection date and time.
My rifle is a working rifle, they listened to me and was tuned to recommended legal power, now i am able to continue with my pest control duties with my rifle even better than new. I recommend Mel, Jamie and the whole HW110 Tuning team, they are the Harrods London of Air rifle tuning. Honest, reliable and above all professional service at an affordable prices. Even if your rifle is brand new or old take it to HW110 Tuning and you will not regret it instead you will have a rifle that is way better than when it came from the shop. A true gem to the air rifle community.
P.O.T. 25th July 2022
Just to let you know that I am delighted with my rifle. Working beautifully, seems smoother, very, consistent and I am getting more shots from a fill. Many thanks
F.N. 3rd April 2022
Parcel arrived I can’t find the words to thank you it is like a new HW100. You have done a brilliant job and I would have no hesitation in recommending you to any of my friends. Thanks again.
B.D. 24th March 2022
Here is a link to a story in Hard Air Magazine about our Extended Titanium Airtube made for the HW110 and HW100 FSB purchased from our online store, shipped to USA: CLICK HERE
Stephen Archer, Hard Air Magazine 18th March 2022
Sorry its taken a couple of days to get back to you, it's only to say that my dad's hw100 turned up Saturday morning, and that he's over the moon with the work that has been done. So once again thank you for your help and support, it's very much appreciated. Thank you.
B.S. 15th March 2022
Hi. Just a Note to say a big..... Thank You. I have recently been asked to Repair some leaks on HW 100s and the information I've gained from your site coupled with the excellent way you package your 'O' rings I wish other suppliers could grasp the concept..... Lol Keep up the Great work. From one Happy Bunny (Hunter).
R.L. 14th March 2022
I used the rifle yesterday for the first time since the service; it shot well before but it's now much more refined and nicer to shoot overall, the titanium cylinder has really improved the balance.
Thanks for all your work, I'm really pleased with the end result.
M.B. 13th December 2021
Just to say I’ve had a day off today, and with fairly perfect weather conditions for testing pellets.
Out of 11 brands and sizes these two were probably the best, only a 4 mph wind and any flyers were most likely pilot error by me. The consistency of this HW110 since you waved your magic wand at it is a total transformation. Superb.
Will Edwards APSI Shooting Instructor, Bristol 15th November 2021
Just wanted to say a massive thankyou for a great job you've done on my gun , your a credit to your profession and would have no issues recommending you to anyone. Once again thankyou so much.
S.C. 27th October 2021
I’ve spent some time with my hw110 and my hw44 since picking them up from you last Friday and just want to thank you for the work done as I’m over the moon with them and to thank you for your advice and assistance is was much appreciated.
If I have any problems or need any work doing on any other items in the future I know exactly where to come. Hw100tuning will certainly come highly recommend from me to any friends or associates that need any work doing in the future. Many thanks.
S.L. 7th September 2021
CLICK HERE to visit a video review of our Extended Titanium HW110 Air Tube from the Paperball & Pentube Channel
27th August 2021
It's taken a bit of rescopeing my rifle again I don't know why but just did, it's now sorted and the gun is a pleasure to shoot again. Thank you for a sterling job and can recommend you to anybody that has a Wheirrach with low power you are a professional technician with good at keeping one informed of what's happening your a star sir.
A very satisfied customer.
J.S. 15th August 2021
As promised I wanted to feedback on my gun after you guys worked some magic. I’ve not had much chance to get out since it’s return. Today I went down the range and put around 12 mags through. I then put it on the chrono and wow, I’m so impressed. The gun feels smoother in all departments.
I’m so happy with the work and can’t stop singing your praises to everyone. Many thanks again.
R.J. 9th August 2021
Just thought I would let you know i am delighted with performance of my gun since you serviced it. Its like a brand new one thanks very much.
G.A. 21st June 2021
Just wanted to say a big thank you for the excellent work you carried out on my 110. Ive put the scope on and been out this morning and got it set up, very happy with it so thanks again.
P.W. 5th June 2021
I’ve actually managed to get out and zero new scope to rifle. I just thought I’d give you some feed back.
Well as you know it was set too 11.2 with JSB 10.34gr. It’s settled down at 11.16 so spot on. I’ve put some QYS 9.56gr through it and it’s running at 11.33. Normally I’d expect it to be slightly lower but we live in the real world and things are not as black and white as we think. Got to admit the QYS are a much more accurate pellet by a long mile over 30 yards and as that’s what I shoot out to for rabbits it’s just the job.
Can’t tell you how pleased I am with how this is preforming. I will post this on the forum and let them see that a service from you is worth every penny and should be the first thing they do when buying a 110.
I.H. 20th May 2021
Just an update to you...
My Hw110 is shooting so much sweeter than before.. trigger is spot on.. shit count gone up and rifle feels so much lighter..so thanks again..
(second email confirmed that it was indeed SHOT count that had increased - good to know!)
C.S. 12th May 2021
This is a video review by Paperball & Pentube of our HW110 service having suffered with the usual power loss problems:- CLICK HERE TO VIEW THE VIDEO
8th May 2021
Received my HW110 back yesterday and took it to the range today. My gun now has its Mojo back! Easy to re-zero and it really knocked down the targets. It now performs just like it did when it was new. Thanks to the team for their great work.
I heard about you people via AM Bushcraft n Hunting You Tube channel where Andy Moriarty sings your praises.
Thanks once again.
R.F. 6th May 2021
Having had the rifle back a couple of weeks or so all I can say is wow, what a difference the titanium tube and your magic dust has made to a reasonably new gun.
Now she can actually do the business aswell as look the business......money well spent keep up the good work guys . (See a picture of Craigs Beautiful HW110 in the GALLERY).
C.E. 3rd May 2021
Just a quick note to say thank you for the work that you did on my two HW110’s. They’re running much better now, and the titanium tubes make a huge difference to the handling.
Thanks again for the good work.
D.M. 19th April 2021
CLICK HERE to see A.M. Bushcraft n Hunting review of the Full Service & extended Carbine Air Tube - weight and shot count.
16th April 2021
Just a note to thank you all for the work on my HW110. I’d completely lost confidence in a gun I really liked and heard bad reviews about returning it to hull cartridge. Luckily the same forums recommended you.
After a full tune and anti tamper removal the gun seems to shoot far more sweetly and after a fortnight and a few hundred pellets has settled to be very consistent in power.
Many thanks for the excellent service from initial contact to return of the rifle.
D.R. 10th April 2021
A nice video of Notts Pest Control in action with a fully serviced HW110 with one of our lightweight, extended titanium air tubes. VIEWER DISCRETION ADVISED - Pest Controller at work!
CLICK HERE to view the video.
I would like to say a massive thanks for the service and upgrade on my hw100, I loved it before but it feels even better. Had a bit of trouble getting a good zero but that was down to the wind, I managed 2 rabbits on my outing. Hopefully first of many. So thanks again
K.S.. 20th January 2021
I have been back from work a few week and I have put the hw100k that you tuned for me through its paces, and what can I say! The work is outstanding!!
It has been used every other day in rain snow and got dirty and wet and its not once missed a beat. It has become a lot more quiet from the action now and it is insanely accurate! I thought it was accurate before with the so called BTAS tune it was meant to have!
It absolutely loves the heavy jsb pellets you recommended to use with it and its constantly smashing a 10mm spinner at 45 yards!
If I need anymore work doing you guys are my go too 100%!!
C.C. 3rd January 2021
Took the HW to the range yesterday,
Shoots great and the trigger is a lot smoother.
I have had to move my aim points over 30 yds down 1/2 mil dot as there is less pellet drop so it must have been down on power. Very pleased with it.
Many thanks for your excellent service.,
C.B. 19th October 2020
Hi Mel,
Item received and fitted today. I have set the Rifle power and over a 20 shot string it is set at an average 11.48 ft lbs instead of the 10.56 ft lbs I was getting previously using 10.34 grain jsb heavies. I am sure it is more consistent and more accurate also. Might just be me but I now feel a lot happier and feel I have the Rifle I paid for. Also I am so glad I did this rather than sending it back to the dealer or Hull cartridge 3 or 4 times which I know a few lads have had to.
Many thanks again,
P.W. 21st September 2020
Thank you very much for the service and updates procedure you have just carried out on my HW100. Now I have had the opportunity to set up my gun, the result is exceptional. Everything is as smooth as silk and the accuracy is second to none. Blasted 10 shots all inside a 5p coin size circle at 35 yards. I am more than impressed with the outcome of the work carried out and also the impressive personal service I received throughout my dealings with this organisation. Will highly recommend.
G.J. 17th September 2020
I just wanted to say how thankful I am for the fantastic customers service and brilliant repair and setup of my rifle.
I had major issues with my old HW100 .22 and thought it was only fit for spares but after speaking with them, I sent my rifle to them for repair and I have to say I am totally over the moon with the performance and results, they even tested different pellets and informed me of the best pellet for my rifle and also supplied a performance report.
My rifle is absolutely amazing now and after firing 3 pellets to zero it I hit the remaining 11 pellets centrally and constantly at a range of 33 yards, shown In photo.
These guys are brilliant and I highly recommend them due to their outstanding customer service and workmanship.
Gordon R. South Lanarkshire 10th October 2020
Evening buddy the spring is perfect its made a nice trigger now cheers
J.M. 30th July 2020
Thank you for sending air cylinder end removal kit and full service kit. Fantastic service my problem solved. Thank you.
R.B. 16th July 2020
I just want to say a big thank you for the great repair of my hw100. It's working really well like new again.
A.S. 1st July 2020
I really want to say thankyou for your assistance and say what a difference buying the parts from you has made.
As I've said in previous emails I have an early mk1 hw100 in .22fac. it had a few issues the biggest being the leaking regulator. But after your advice of perseverance and to carry on polishing I'd like to say it is 100% leak free, plus while doing all of this, over time I've purchased your heavy-duty fac Belleville washers the match pair of fac hammer and valve Springs, fast flow valve stem, regulator manometer and other various seals and bits along the way.
All this finally all came together over the last couple of days and wow wish I had done this years back, it's made what was a very good rifle into a truly amazing rifle and now capable of a comfortable 23.5 ft lb with very minimal hammer spring pressure and a reg setting of 135 bar, while still retaining my shorter 410mm barrel rather than my fac 610 barrel. Plus best of all thumnail size groups at 55 yards and as for the Matched pair of springs it has made a a unbelievable difference.
So just really wanted to say a big thanks for your help and the quality of the parts you supply.
Thanks again.
R.W. 26th June 2020
I just wanted you to know how happy I was with the fix and tune to my HW 100. Please pass my thanks on to your team, power and performance are both great and accuracy fabulous. Many thanks and would be pleased to recommend your services.
A.D. 22nd June 2020
I'm really happy with the full service on my HW110, which was significantly down on power and cannot recommend HW100 Tuning enough.
Mel was great, and took the time to answer the few questions I had also keeping me informed when my gun arrived at the workshop, when the work was completed and gun ready to be returned. Fantastic!
Best of all, included in the work summary report was information about the new power levels on the pellets I had supplied PLUS details on pellets that I hadn't supplied that Mel found delivered even better results as a comparison / recommendation for me.... Talk about going the extra mile!
All in all, In very impressed with the customer service I have received and Mel deserves all the positive comments.
Great job, excellent company and fantastic service.
Many thanks,
R.W. 18th June 2020
Just a brief note to let you know my HW100 is firing brilliantly and holding pressure. Delighted with the outcome. Many thanks.
C.D. 13th June 2020
Hi Mel,
Fitted shuttle. All good. Set to 11.4 over 160 shots to settle. Haven’t sighted in yet.
Many thanks, excellent service.
D.B. 10th June 2020
I sent the rifle into HW100 Tuning as it had developed a slow leak and had never had any work done since new (7 years old) so thought I best get the experts to sort it.
Since its return I have had approx 500 JSB Exacts through it and its awesome ,last night whilst shooting outdoors at a lased 32 yards I even shot a fly that landed on the target my buddy could not believe it .
Mel has been very quick to answer any questions I have had during and since the work has been done .
I can highly recommend their work to anyone who has such rifles.
A big thanks to Mel and team.
Paul , Grimsby 3rdJune 2020
I like my HW110, but the power drop during the first year has been a struggle. I can't believe how easy it is to get it back up to 11 ft lb now the AT is removed. THANKS for the work and the guide, it's actually easier than you said it would be. Really pleased. Should have sent it to you last year.
Matt 23rd April 2020
I fix air rifles for a number of shops from as far away as Ireland. I have had seal kits from you a number of times I don’t seem to get many weihrauch rifles but when I do it’s a pleasure to receive one of your seal kits they are by far the most comprehensive best set out and labelled kits bar none even how you put the parts diagram online makes life so much easier. Thanks mate, Andrew ... 2nd April 2020
I did receive the little action back plate Saturday morning so I reassembled the gun and the sights only needed four clicks to the left to be bang on a pencil line at ten yards.
I must say a big thank you for a superb service, I am extremely happy with the gun, a job very well done indeed. The gun is better now than I remember it from brand new it is very smooth, quiet and accurate, a joy to shoot.
I would be loathed to take my gun anywhere else or have anyone else touch it.
You pay attention to detail and certainly take a pride in your work.
Thank You once again with Best Regards,
Chris from Doncaster. 28th November 2019
Yesterday I managed to get a few hours shooting on my 100.
The difference on the magazine locking is amazing, I’d not realised how bad it must have been. I shot out to 85yds at Braces plinking range and killed/reset the 4cm rabbit quite a few times on the trot. Shot a group of 12 shots at 50 yards of sub 1” on a mild wind of 4 to 7 mph.
As I’d indicated it shot well before your magic hands got to work, but it’s much more consistent now. I’ve managed to get reading of 7fps of a full magazine using my nice cheap crombo, I’m getting a full 9 mags and still just in the Green before a top up. All in all I had a great days shooting.
All things considered you’ve done a great job for a reasonable price and I’m happily recommending you to my buddies at Braces and Riflemans
John in Bristol 25th October 2019
Put the rifle all back together with the new Reg in and went over the range this morning and filled it to 250 bar, this was the first time the cylinder had been filled since the Reg has been installed.
Instead of shooting it, decided to put it straight over a chrono and recorded a fourteen string, and was amazed at the results, remembering that this was the first time the Reg had been used, the highest was 778 and the lowest 775, a variation of 3 HOW AMAZING IS THAT.
Had a really brilliant morning shooting as near as one hole groups at 35 meters, and not missing much else I was aiming at.
I have to say my HW100 has got every latest mod that you do for the insides of them and it’s certainly been worth every penny.
Once again thanks for all your help, it been much appreciated.
JS 23rd August 2019
Just collected the cylinder from Cyprus Post Office. Installed and tested, very happy just need a little fine tuning to get the best consistency in pellet speed.
Thought you might like some feedback:
121 shots using JSB Exact Heavy 10.34 grain
Average energy 28.61 Joules
Average speed 292.27 m/s
(Could not get much more than 40 shots before and always topped up after 2 magazines.)
Accuracy testing to follow.
Best regards from very happy customer in Cyprus. 19th August 2020
Very pleased with the rifle. Have done some shoots and the gauge has hardly dropped after five mags. Impressive. Accuracy is also spot on. 19th August 2020
To say that I’m over the moon is the understatement of the year
Originally, my .20 was getting 5 1/2 mags so 77 shots
As I said yesterday I set the reg to 89bar and the hammer spring to 11.5ftlb using JSB Exact 13.73gr. This gave no spike whatsoever when the gun came off reg
Well filled to 250bar and at a range of 35yds time to test accuracy and shot count. I cleaned the barrel so first 3 magazines were inside a 10p piece. Once leaded in the remaining shots were all inside a 5p
Here’s a photo of my 4th to 6th magazines. The remaining 3 magazines were just as accurate.
So in conclusion, as accurate as I could want and now 125 consistent shots before dropping off reg. That’s one pellet short of 9 magazines. Absolutely amazing!!!!"
Warren. 15th May 2019
First Impressions:
Unboxing the package that was carefully wrapped and Royal Mail Special Delivered to my house, it was immediately clear to see that the parts oozed quality. I had gone for the black tube option and it was finished to a very high standard. They had even sent me a redesigned HW brass inlet adaptor as they could see improvements, something which I believe is going to be incorporated into the kits going forward.
I do not wish to speak ill of other people’s work, but these parts were a marked difference in quality from the original BTAS offering….worlds apart.
We have all seen the videos going around the net of “home made” or badly made aluminium tubes going pop, or poorly machined parts. There are no such fears with this system. Tested to over 700 BAR with no signs of weakness and constructed using CNC lathe this kit was impressive stuff! There is also the added advantage being able to fill the titanium tube to 250 BAR giving the opportunity for an increased shot count.
My kit was a little different to HW100Tuning's standard one as I already had some BTAS modifications to my rifle so I didn’t need certain parts like the pre-chamber doubler, and my original HW reg core had already been removed.
In my package I received:
• A karbine titanium tube
• Tube to HW block end with drop in regulator pre-set to my requested output of 95 BAR
• Tube front end with upgraded gauge and fill port cover
• O rings for the ends (pre installed)
• O rings for the filler probe (an upgraded item)
• Lawrie spanner just in case I ever needed to remove the ends (although these are fine hand tight)
• The new brass inlet adapter with upgraded nozzle o ring to replace the original HW part.
The whole system took me under 30 mins to assemble. I’ve worked on a few HW100’s, but even to a novice this is no more difficult than changing a few o rings. If you can change an o ring you can fit this system!
Next was on to filling it up! Anyone familiar with filling an air rifle from a dive bottle may have come across the strange effect of “Thermodynamics”. As you fill a bottle or tube it gets warm. When the tube or bottle cools, there can be a slight pressure drop. This can give the illusion of a leak, but this isn’t always the case.
After filling the new tube to 200 BAR and leaving for an hour of so my gauge showed a pressure drop of about 10 BAR and settled at 190 BAR. I topped it up to 220 BAR and then left it for 2 days to check for leaks.
I am pleased to report that the system went together first time, with no leaks, no adjusting and no problems. Ask anyone that knows me…I can break anything! I own 3x electrical engineering companies in the UK and my own staff won’t let me use power tools (its probably better this way) but even I fitted this system with no problems.
Id like to think I know a bit about airguns, and in particular, Rapids, Air Arms and HW100’s, but the instructions provided are fool proof for anyone to use….i reckon my wife could do it….but that would mean she has to go in my gun cabinet and she thinks I only have the one!
Testing: HW100Tuning had pre-set the reg to 95 BAR, leaving me just the fine tuning of the hammer preload to set my desired power. I tested JSB Exact Heavy and HW Magnum pellets as two of the heaviest offerings to make sure I didn’t run over the 12 ft/lb limit for non-FAC holders. I settled on 700 fps as being both consistent and offering a power of just over 11 ft/lbs.
When running pellets through the chrono (Alpha F1) I noted how consistent the reg was. 700, 703, 701, 699, 700 etc. The figures didn’t move further than 3 fps from my desired setting. Again, impressive stuff.
Reassembling the action and stock, I moved indoors to shoot a few targets with the HW Magnums just to get an idea of the potential accuracy of the gun before I come back another day to do one of my famed pellet tests (I enjoy these immensely). Initial results showed that the accuracy potential is there I just need to find “the pellet” (14 shots)
What was impressive, is that I had rattled through about 7-8 magazines with chrono testing, roughly zeroing and then a few targets to assess potential and I still hadn’t hit the reg pressure of 95 BAR. I would say from experience that this was a good 2-3 mags more than I would usually expect from a standard HW100K. The air usage, or lack of it more like was fantastic. Once I find the right pellet this is going to be a deadly combo.
RC 13th August 2018
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