Quick question, anyone got a riflling twist calculator table or program handy? My search has proved not so good....
My 7mm08 Rem has a twist of 1 in 8.5" and is great for heavy for caliber bullets like 168gns, but I want to try some 130's and think that the twist may be a little fast to stabalise them.
Any ideas or does anyone have the answer?
Ta!
Rifling twist calculator
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Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
Rifling twist calculator
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?
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Guns dont kill people. Dads with pretty Daughters do...!
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20series
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Re: Rifling twist calculator
A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools!!
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dromia
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Re: Rifling twist calculator
Come on Bambi get some
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Re: Rifling twist calculator
Thanks chaps, it looks like 130s will be too light in a 1 in 8.5" twist.....
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?
Guns dont kill people. Dads with pretty Daughters do...!
Guns dont kill people. Dads with pretty Daughters do...!
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pe4king
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Re: Rifling twist calculator
Sim if thats the case then have you tried going up the way to 175s ?, sporting services have some SMKs in 7mm and it says specifically for 8.5 bbls
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Re: Rifling twist calculator
Trouble is, I'd be struggling to make 2400fps with 175's...... In real terms, I'm just over that with the 168's. I like the idea of 130's at over 2900, so I may give some 150's a go.
But, if anyone has a few 130gn sierra matchkings kicking about for me to try......
But, if anyone has a few 130gn sierra matchkings kicking about for me to try......
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?
Guns dont kill people. Dads with pretty Daughters do...!
Guns dont kill people. Dads with pretty Daughters do...!
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Sandgroper
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Re: Rifling twist calculator
If you still need one I have one in excel which is only 18kb, so I could e-mail you a copy?
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swampy
Re: Rifling twist calculator
I have a remmy model 7 in 7mm08. it has a 1 in 8.5 twist barrel. it's favourite is hornadys 139 gr interlock. i shoots sierra120s to about 2 inches at 100 yards. but the interlocks cloverleaf.
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