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new project 243AI

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Unread 02-09-2007, 03:28 AM
Junior Member
Join Date: Jan 2007
Posts: 24
new project 243AI

First post so be kind please.
my new project is a 243AI With a 1-8 twist.
looking for load info for 85g siera game kings and 95g&105g berger possibley amax aswell POWDER == VIT N160. [img]/ubbthreads/images/graemlins/smile.gif[/img]

Regards TONY.
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Unread 02-09-2007, 04:10 AM
Junior Member
Join Date: Sep 2005
Posts: 2
Re: new project 243AI

take it very slowly with vit n160 i had probs with 95 gr bergers and 160 at under 45gr so switched to vit n560 and at 46.5 gr i am getting 3100 with a es of 16 and no pressure signs i will be trying upto 47 gr on sunday .
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Unread 02-09-2007, 06:16 AM
Platinum Member
Join Date: Oct 2005
Location: Michigan
Posts: 2,232
Re: new project 243AI

Welcome to the forum. 243AI, excellent, keep us informed of your progress, I've often thought about that chambering. If my 243Win barrel ever wears out, I'll have to think more seriously about it.

If some is good and more is better, then too much is just right.

My mind is a raging torrent, flooded with rivulets of thought, cascading into a waterfall of creative alternatives
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Unread 02-09-2007, 10:33 AM
Bronze Member
Join Date: Sep 2006
Location: Hamilton, New Zealand
Posts: 40
Re: new project 243AI

Hi Tony,
I too have been thinking of a 243AI. Excellent dies (Redding), brass (lapua) is a good start. Our of interest what barrel lenght, stock, action do you plan?

Glen - New Zealand
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Unread 02-09-2007, 08:19 PM
TMR TMR is offline
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Join Date: Mar 2006
Location: Elma, WA
Posts: 541
Re: new project 243AI

Welcome to the forum.....Might try Reloader 22 with the 105's if you have access to it.
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Unread 02-09-2007, 08:58 PM
Bronze Member
Join Date: Aug 2004
Location: LV NV
Posts: 59
Re: new project 243AI

This is a Cooper 243 AI with a 100 yard load work up for the 80 grain Berger flat base and V V 540, Lapua brass and F 210M primers. They are both 5 shot groups! Different twist than you mention and the most easily shooting load was the 85 Sierra and IMR 4064.
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Unread 02-09-2007, 09:28 PM
Platinum Member
Join Date: Jun 2007
Location: west of Little Rock ,Ark.
Posts: 1,271
Re: new project 243AI


Sorry , I don't have loads for those bullets . My twist is 7.5 and I use the 107 smks at this point for my 243 AI . ( sako action, Schneider bbl 26", smithed by George Gardner of GA Precision).

I use 41.6 grs. of H4350 in Lapua brass lit by a fed gm 210 primer to push the 107 smk aroung 3050 fps as reported by my Oehler 35 .

That load has given 1/3 moa at 300 yds and groups at 100 were as small as .187 . AND , before I see flames and worse attached to this thread I will add that those groups were shot by a " picker " who had no time constraints and was shooting in ideal conditions . Meaning that I dont think I could reproduce them with any regularity in a br comp . That being said I must point out that I /it has done so many times . I dont know if I still have some of the old targets but if so I will post them .

Jim B. [image][/image]
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