This is going to be a long thread - bitza build - can you guess what it is yet ?

[nurek]

Not quite up to KT's prototyping / fabrication skills though, I know !

Fingers crossed the KT muzzle brake will fit when you find the right barrel!

[Shed tuner]

Fingers crossed the KT muzzle brake will fit when you find the right barrel!

now there's a thought !

[Shed tuner]

Just a few things done today...

Took the gamo trigger out and did the RC bearing mod, as it was terrible. Now it's lovely and light, but still no discernable second stage. I need to introduce one somehow, but with a bit of moly and the bearing, at least it's very smooth and light.

Found a stock


Trimmed down the trigger cage to make the inletting easier. Will break out the router at the weekend.. too crowded in the workshop to do it in there.




And I've decided on the donor barrel, from a FWB300S, as it's already blued and accuracy is assured.

I've also realised I need to make a trigger guard.. that can wait... This might be a working gun by Sunday; it'd be nice to take it to the range...

[TonyL]

Looking good already, Jon. And, as you say, accuracy should be assured with the 300S barrel.

[Shed tuner]

...alive I say.


Finished machining the barrel this morning, and with a quick tweak of the hammer spring it;s doing 10.5 with JSBs. Will have a few hours work to do checking and flattening out the power curve, but whatever.. I have a working air rifle from a pile of bits.. I feel like I've just had another child This is certainly the most ground-up build I've done to date.





Next job is the stock, then the two stage trigger, trigger guard, and the cosmetics (barrel support, reg cover, find some grub screws for the barrel), and a mod or stripper. And the power curve.

[oldskoolzzz]

Cracking JB

[Craig-P]

Tremendous build mate, well done.

[Papa g]

...alive I say.


Finished machining the barrel this morning, and with a quick tweak of the hammer spring it;s doing 10.5 with JSBs. Will have a few hours work to do checking and flattening out the power curve, but whatever.. I have a working air rifle from a pile of bits.. I feel like I've just had another child This is certainly the most ground-up build I've done to date.





Next job is the stock, then the two stage trigger, trigger guard, and the cosmetics (barrel support, reg cover, find some grub screws for the barrel), and a mod or stripper. And the power curve.

Loving it best thread I’ve seen in a long time! This stuff really floats my boat.
Regards Graham

[gtfreight]

It just amazes me when I see the skills that you and others on here have.
If I had 10% of your expertise I would invest in some proper machinery and have a go myself but sadly it would be just taking up room in my garage.
I can't wait to see the finished creation.

[MartynB]

What are you going to do about the turned down bit of the barrel that goes into the breach block ?

[Shed tuner]

What are you going to do about the turned down bit of the barrel that goes into the breach block ?

a tappered collar (that's the rear barrel support I mention), a bit like a pro target:

[kevG]

very nice,you have made a silk purse out of a sow,s ear.
kevG

[Shed tuner]

very nice,you have made a silk purse out of a sow,s ear.
kevG

cheers Kev, your advice on that other thread helped... small port defo needed...

[NickG]

Very nice Jon , how about a reflex shroud, tidy it up and quieten it down at the same time.

[Shed tuner]

Very nice Jon , how about a reflex shroud, tidy it up and quieten it down at the same time.

I did think about that, as they did do a shrouded version, and there's a decent gap between the barrel and the cylinder... but I'll start with the KISS option