Mike Upton Airguntune Firearms.


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Mike Upton Firearms Section Introduction.

This section is a total departure from my PCP Air Rifle Servicing.

As an RFD I offer specialised work on specific target application centrefire rifles.

I Shoot Full Bore Target to 1000yds plus, gaining a fair degree of both technical & practical knowledge on the subject.

Loading my own ammuntion, formulating & logging the data to cope with the challenges of long range target shooting.

If I can help you in this specialised field, then please do not hesitate to email me.


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Firearms Target Rifle Testing & Evaulation.

The Testing Zeroing and Inspection of centre fire type firearms both new & old which are used primarily for target shooting.
Access to 100 yds range for this purpose, the ability to fully test & evaluate without interruption.

Firearms Target Rifle Load & Accuracy Development.

Using Quickload & Quick Target Load Development.
Testing loads - recording data - production of accurate loads to suit target requirements.
High Tech on board chrono testing equipment to record all the test firing data & giving both an accurate and SAFE load.

THESE SERVICES ARE OFFERED TO SELECT CUSTOMERS & SHOOTING CLUBS ONLY.

QUICKLOAD BALLISTICS SOFTWARE.
QuickLoad ballistics programme to calculate a safe and practical load & evaluating the range and accuracy.

MARCHSCOPE CHRONOGRAPH SYSTEMS.
Marchscope equipment for FPS chronographing & logging data for rifles up to .308 calibre.

Airguntune Custom Manufactured Firearms Target Rifle Rear Bag Riders & Stocks.

The In house manufacture and design of Airguntune Full Bore Target Rifle Rear Bag Riders and Stock Accessories.



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My latest project .243 Stainless steel barrel and reciever in a custom stock

& some radical changes.

 

Browning X bolt

The Build
A .243 Browning stainless steel reciever and barrel.


I first manufactured a NEW trigger housing and designing this with a lighter pull
& a TRUE 1ST STAGE TRIGGER

Next stage was a custom alloy stock which will be anodised Metallic purple eventually
after zeroing and testing.
The idea is to shoot this to 1000yds at Bisley then if succesful I will consider changing
to a longer barrel with a faster twist rate.
Rifle now complete and tested producing around 3090fps with a 90 gn Lapua Scenar bullet.
Next stage is to develop and fine tune the load and test to achieve the tightest grouping.
So far it seems this will work at a 1000yds but I have my doubts that it will not be good enough
for me in the present setup. I plan to re-barrel it in .243 calibre with a 28 to 30inch 1:8 twist.
Then I can look at the 100gn to 115gn bullets and a realy fast fps.
I did have major issues getting the scope windage alignment which i can only assume was done to the original

locating holes for the rail. I had to make custom mounts to cure a 15MOA windage error which at 1000yds
Gave me a serious problem.
MORE LATER.

 

 

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Project 6mm BR Norma Custom Rifle Build.

The Build
6mm calibre rifle using the above rifle .243 Browning stainless steel reciever.


Manufactured my own NEW trigger housing and designing this with a lighter pull
& a TRUE 1ST STAGE TRIGGER

After this I will check the bolt & reciever alignment and machine as required which means building some custom
machining equipment for the task.

After this the next stage is a barrel blank and then start machining this MORE LATER

Going to go with a 28 inch Stainless Steel 1:8 barrel in 6mm BR Norma.
Then develop bullet weight/ load combinations to suit 1000yd shooting.

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Savage FT/R 30 inch Barrel Single Shot Target Rifle.
Complete With Bag Rider, 32x Scope & 25MOA Rail.

 


Savage FTR

 

 


I sold my own and the works .308 rifles and decided to go for something I always wanted. A heavy 30 inch barrel with a short action.
What an accurate piece of kit it is, giving me around 140FPS faster on my loading and easily taking on the 1000yds in her stride.
Currently shooting 155 MK Palma / 155TMK bullets at around 3050FPS & 175 MK TMK at 2850FPS.

I have actually got room to come down in power for the first time ever and just need to sort out my nodal points & groups
fine tuning the load. Almost there just a bit of fine tuning needed.
Recoil is not a problem here with a good solid CNC Arnold Precision Bipod and a Bag Rider.
6 VEE BULLS last time out and hope to improve on this score
LOOKS GOOD - FEELS SUPERB - SHOOTS WELL!!!!!


 

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Marlin XL7 .223 Slightly Non Standard!!!!!!!!

 

 

marlin  XL7

 

 

Changing the synthetic stock was the first move as I found it touched the barrel, ruining the rifles harmonics
with the annoying habit of twisting on the bipod, even after I strengthened the stock internal channel.
RESULT A RIFLE NOT ACCURATE AND ALSO RECOILED FAR TOO MUCH.

My stock I machined from a solid aircraft grade alloy & then adding the butt and pistol grip from ABS.
The muzzle brake is Stainless Steel 316 grade precision designed & manufactured to a very tight tolerance
internally giving me just .007" (.17mm) clearance over the actual bullet dia SCARY STUFF!!!

Testing it at 100yds it will group within a 14mm circle, any error is down to me trigger pulling slightly to the right
(one of my nasty habits).
Recoil has to be seen to be believed, almost a fluid action very minimal.

SUMMARY
I now have a rifle that will shoot to 600yds accurately constantly hitting VEE BULLS.
Load Development tested and proved JOB DONE
By the way I shoot both on a bag and a custom Arnold Precision CNC Bipod.



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Marlin XL7 .223 Accuracy

 

JUST LOOK AT THE FACTORY AMMO VERSUS MY DEVELOPED LOADS!!!!!!


Test target

 

 

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Marlin XL7 .223 Custom Scope Mounts

 

I made a custom scope rail which is 2 stage adjustable.This gives me my standard shooting setting for 100 to 600 yards.

I developed a load based on 77grain Seirra TMK bullet heads and tested initially for my twist rate which is 1:9.

At 600 yds it proved to be perfect both in terms of vee bulls gained and stability, going throughthe target straight

as a die.


I proved my rail by initially bore sighting at 100yds and calculating out precisely my 600 yd MOA

with both the 1st and 2nd stage settings. My initial calculations were out by only 4MOA at a 100 yds 4 inches,

not bad for bore sighting by eye, and a figure I usually can achieve or better with my precise methods.
So testing both 1st & 2nd stage at 600 yds was nearly perfect and a testiment to accurate machining and accurately proved calculations/ballistics.



Marlin XL7 .223 Long Range Shooting 900yds!!!!!


I went to Bisley early February with the long range crowd, and took my .223 Marlin along. We were scheduled
to shoot 1000yds but re-turfing the firing point put us forward to 900yds. Most of the group thought
me shooting this calibre
long range was going to end in tears.

Using my calculations and a 2 stage adjustable mount system I designed and manufactured my first shot was recorded
as low off target.Making a 4 MOA correction put me high left which left me a little bemused.
Anyway accepted the call from the butts and fired 2 more shots un-corrected which were placed in the same ball park.

Wind level was 3 to 7MPH right to left headwind approx 30 degrees towards me so very helpful with this calibre.
I shot around 40 rounds and have come away being very pleased, with several vee bull and inners to my credit.

I now have to just refine the loads slightly , and next time will be shooting 1000yds & chronographing the results
to check ES and SD figures



Target Score Record Below


900yds score

 




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Savage Stainless Steel Barrel .22 Rimfire 10 Shot Mag.
Slightly Modified From The Standard ABS Stock.
Sporting My Own Custom Made Stock, Rear Bag Rider & Barrel Tuning Damping Collar.


Savage Stainless Steel Barrel .22 Rimfire.

I bought this one fitted with a standard ABS stock which was light as a kite and rather short with the usual type of sporter design.
Sort of ok but not for anything accurate.
I did some work on the trigger which is much improved and will be fitting a custom made magazine probably 20 shot.
Now sporting an Arnold Precision Bipod and a nice sidewinder scope with 100mm shade. At present its running with a Parker Hale Moderator & I will be designing my own later.
PLEASE NOTE!!!!!
My Custom Made Barrel Tuning Damping Collar.
I am now able to fine tune the nodal position with its prefered ammo Fiocchi high velocity get tight target groups at 100yds plus.
Custom made Airguntune Rear Bag Rider which gives me pin point scope accuracy with very little deviation.
It now feel like a proper target rifle and similar to my .223 and .308 calibres.
I will publish my improved groups later after the next club shoot.
LOOKING GOOD - HANDLING FEELS SUPERB - SHOOTS WELL!!!!!
NEXT YEAR I PLAN TO TRY SHOOTING THIS OUT TO 500/600YDS.
WE SHALL SEE WHAT HAPPENS AS TESTING THIS YEAR OVER THIS RANGE WAS POSITIVE.

 



savage 22



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Rear Bag Rider Design & Development.

Rear Bag Rider.

I bought my latest Savage FTR target rifle complete with a Rear Bag Rider & I must say this has improved my shooting.
It has smoothed out the recoil and is giving me constant accurate Vee Bulls out to 1000yds.
The Rear Bag Rider has not gone un-noticed by other shooters who say these popular add ons are either hard to get hold of, or very expensive.
I decided to take up the challenge and make one for my Savage .22 Custom rimfire rifle.
And I must say WHAT AN IMPROVEMENT!!!!!
Custom Designing and manufacturing Airguntune Rear Bag Riders to suit individual rifles.


Bag Slider






Muzzle Brake Design & Development.

Muzzle Brake.

I successfully design & manufacture muzzle brakes for Full Bore Target Rifles.
These work very well indeed improving both acuracy and reduce felt recoil.
I would advise that you check with your RCO Range Conducting Officer before using a Muzzle Brake.

Muzzle brake





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Mike Upton Airguntune Firearms & Ammuntion Development.

NRA

Member of The National Rifle Association.
Bisley Shooting Ground.