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Author Topic: 45-70 twist rate  (Read 1218 times)

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Offline eod20

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45-70 twist rate
« on: September 26, 2011, 03:16:21 PM »
 
    tried some 300 gr rem in my enfield 45-70 and they will not stablize. 1 raged hole for 5 rounds at 50 yrds barely hitting the paper and keyholing at 100      tight patched the bore and got a 1 in 21.5' twist    what will that stablize properly    i was having no problems with rem 405 and think i will go back to them
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Offline Frank46

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Re: 45-70 twist rate
« Reply #1 on: September 26, 2011, 05:14:51 PM »
The origional twist for the trapdoor springfield was I believe 1x22. So it looks like you are in the ballpark. Frank
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Offline Bama Bill

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Re: 45-70 twist rate
« Reply #2 on: October 03, 2011, 12:25:06 PM »
Give the 405 gr. bullets a try.  Some friends of mine who shoot BPC like the 500 gr., but they're rifeling is more like 1:18.  My rifle is 1:20 and it likes the 405's.
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Offline Ranch13

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Re: 45-70 twist rate
« Reply #3 on: October 03, 2011, 01:37:10 PM »
Not sure what an enfeild 45-70 is, but the twist will certainly work with 300 gr bullets. If you're getting keyholes it's most likely because the bullets are to small for the bore.
 Twists from 18-20 inches work fine with bullets to 500+ grs, slower than the 20 twist and the heavier bullets may start having trouble.
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