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22-243 problems

 
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  #8  
Old 10-05-2008, 12:29 AM
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Join Date: Aug 2005
Location: Houston,Mo
Posts: 178
Re: 22-243 problems

Quote:
Originally Posted by James Jones View Post
Brian , I've found that barrels with more lands and grooves , especialy button rifled barrels are not as had on bullets when bushed to warp speeds , I have a Douglas 1-8 on and old 22-250 Ackley that has a few thousand rounds through it , this barrel has always fouled out in 10-20 shots no matter what you did to it its just a rough bore BUT I can run a 50 gr Ballistic tip out at 4300fps with no trouble yet a 3 groove Pac-Nor same twist same reamer and ALOT better bore blows them up at 4000. I personaly think that the 6 grooves in the Douglas combined with shallower lands doesn't tear up the jacket as bad , even though the Pac-Nor is a buttoned barrel.
I have heard the same thing about bullets goin bad in 3 groove Lilja and 4 groove Kreiger barrles.

But like :Kreigerbarrels" said their test show some barrels from the same maker will and some won't.
I'd try a little bit heavier bullet , maybe the 80gr A-max , 77gr or 80gr Match Kings , slow them down a little with the heavier bullet and let the added BC make up the differance. I've also had good luck with 80gr Bergers in the past. and have heard of some guys shooting the 90gr Bergers and 90gr Sierra Match Kings out of 1-8 twsit barrels in hot rods like your and having success , they woulden't stabilize from and of my 22-250's though its worth a try , ask around and see if sombody would lend you a few to test.
the 90 smks stablize but come apart frequintly i will try the 80 smks tom. and se how it works i just liked the a-maxes better
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  #9  
Old 10-05-2008, 09:25 AM
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Join Date: Dec 2001
Location: Long Island, New York
Posts: 2,165
Re: 22-243 problems

I shot a 22-243AI for many years. My main varmint load used the 75gr A-Max (moly) bullet @ 3,670 ft/sec. I NEVER dusted a single bullet in the Hart barrel. I believe that 3 things attributed to this:

A. Very smooth bore
B. Moly coated bullets
C. Bullets loaded into the rifling rather than allowing them to jump into engagement

I'd give this a try unless you really have an objection to using moly. If that's the case then I would just switch to the 80gr SMK and your problems will be over.
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  #10  
Old 10-30-2008, 12:39 PM
Junior Member
 
Join Date: Jan 2005
Location: norfolk
Posts: 7
Re: 22-243 problems

I've been running Berger 70gn VLD's in my 1-9 22/243's for a number of years without a single mishap, I have just received a batch of the new thick jacket bullets, my only doubt was on expansion, Bergers have told me that it's the base thats been thickened, the walls have not been altered, so that expansion should be the same.
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