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Winchester M70 Fwt. 7x57 Twist ??
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Winchester M70 Featherweight 7x57 made between 1981 and 1985.... does anyone happen to know what rate of twist the barrels were?

I think I read somewhere they were all 1-8.75 or 1-9 ??

Appreciate the assistance.
 
Posts: 1181 | Location: Texas | Registered: 23 July 2004Reply With Quote
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If memory serves me correctly, it's 1 in 8 3/4. I know it's slower than 1 in 9.

Joe A.
 
Posts: 152 | Location: Alabama | Registered: 06 January 2006Reply With Quote
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Posts: 1181 | Location: Texas | Registered: 23 July 2004Reply With Quote
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I have one of those buggers. It was the hardest rifle to get to shoot I ever owned. I just above gave up on it after, bedding, crowning, squaring the action, checking the bore, changing scopes, and then became a safe queen.
I finally got some advice on this forum. I seated the bullets waaaaay out and used some 160 accubonds and found a solution.
If you happen to struggle with it, you may want to consider this action.

EZ
 
Posts: 3256 | Location: Texas | Registered: 06 January 2009Reply With Quote
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I seated my bullets to magazine length from Day one...and mine has been a tack driver...ala varmint rifle accuracy...

I have two Rugers also that wouldn't shoot worth a crap.. even with the bullets seated out long..

but a load of 40 grains of 3031 out of the Hornady manual, and it shot half inch groups..

so if you have a 7 x 57 that won't shoot, that load seems to really work in many of them...

but my Model 70 digests everything you feed it..real well...
 
Posts: 16144 | Location: Southern Oregon USA | Registered: 04 January 2005Reply With Quote
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I checked my mid 80's FWT and it was 1 in 8 1/4, it shot 140 & 145 ok but now I use 175's.
 
Posts: 58 | Location: ALASKA | Registered: 02 March 2001Reply With Quote
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I had a 257 roberts and the main problem was that they blocked the magazine at about short action lenght and then throated them real long. If i recall correctly they did the same with the 757s. About the only hope for accuracy was to take the blocking plate out and seat the bullets out real long. Without doing it my gun was a 2 inch shooter at best. After i had many loads that went into inch and a quarter inch and a half. Had to sells some guns to pay for a divorce years ago and it was the first to go.
 
Posts: 1404 | Location: munising MI USA | Registered: 29 March 2002Reply With Quote
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