Shit nearly as quick as a Falcon aye Gav :thumbsup::cool:
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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....:ouch...it hurts:
But this post is about speed so here it is 30 grain Bergers at silly speeds :cool:
http://i1004.photobucket.com/albums/...Barrett002.jpg
http://i1004.photobucket.com/albums/...Barrett005.jpg
http://i1004.photobucket.com/albums/...Barrett006.jpg
http://i1004.photobucket.com/albums/...Barrett007.jpg
http://i1004.photobucket.com/albums/...Barrett010.jpg
http://i1004.photobucket.com/albums/...Barrett009.jpg
http://i1004.photobucket.com/albums/...Barrett008.jpg
Thats probably enough pics, good times :grin:
Looks like you win this round:burnt:
Did you go out onto the range and pick up your rifling afterwards?
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.
Its just such an efficient round.
Love it. Whats a 223 sling 53's at, like 3000 fps?
Chris
My 223 test rigs put the 53vmax out at 3550-3600 ish & the 75-80 Amax out at 2950-3000 ish.
My 22 Terminator should put them out faster :cool:
Still waiting on reamers.........& waiting........& waiting......:oh noes: I hate waiting........:pissed off:
That is why I do plenty R&D, to get deffinative results on improvements :) it costs plenty of $$$ & time though to do it properly.......
Haha, so maybe it isn't as efficient as I thought.
80% more powder for 10% more velocity. Its definitely far more efficient in the heavier pills though.
I suppose 8:1 is the normal ratio.
Chris