Thread: The race for speed

Be careful , with running AI reamers into std chamberings already machined in the barrel , as one gunsmith said its something hes asked alot to do , but something he him self will never do , as he feels as the front of the reamer is initially unsupported/guided that the chamber does not cut true , as the edge ( at the back of the case starts cutting before pliot has any guidance or alignment ) .
He feels the chamber does not get cut straight ,

Well I finally had a chance to have a play with my new 22-243, just to prove I haven't grown up either, hope I never do !! :grin:

It is a Kimber Longmaster VT 22-250 unfired, I sent it to Robbie @ Gunworks Canterbury to put his 22-243 reamer into it, he did a Kimber Provarmint for me years ago, unfired as well.
They have a 1-14 twist like most 22-250s so only really any good for the lighter pills
The VT has a 26" barrel & is looking like it will push the 53 Vmaxs a little quicker than my old one would have.
The 53 Vmax is quite new & has a high BC, .290 according to Hornady, I will check it soonish.
It looks like I will be able to push them @ 4050-4075 ish fps, I can go faster but it is a bit hard on brass....
But this post is about speed so here it is 30 grain Bergers at silly speeds















Thats probably enough pics, good times :grin:

Looks like you win this round

Originally Posted by Shootm

Looks like you win this round

+1

Could someone give me the low down on building a 22-243. If I had a stock standard 243 T3. Do I just need to get a fast twist barrel fitted i.e without any other chamber modification. Want to shoot 62gr Barnes. Dont want a long barrel and plan to put a suppressor on it. Cheers.

Originally Posted by TeRei

Could someone give me the low down on building a 22-243. If I had a stock standard 243 T3. Do I just need to get a fast twist barrel fitted i.e without any other chamber modification. Want to shoot 62gr Barnes. Dont want a long barrel and plan to put a suppressor on it. Cheers.

You need a 22 cal barrel in fast twist for the big, 69-90grain etc or slow twist for the 50 ish ones.
The Barnes will probably need a 1-8.
Talk to Robbie at Gunworks Canterbury he has built heaps of them.

Originally Posted by Kiwi Greg

You need a 22 cal barrel in fast twist for the big, 69-90grain etc or slow twist for the 50 ish ones.
The Barnes will probably need a 1-8.
Talk to Robbie at Gunworks Canterbury he has built heaps of them.

Thanks. Have contacted Grant at Truflite. Check out this exercise in perfection. Coyote Hunting Information - Coyotehunter.net • View topic - GETTING STARTED By Leadbisquit