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9372 (Dec 30th 2022) |
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Re: J P Sauer Tell rifle model V 9,3x57r/360 reloadin
#624352
Dec 30th a 02:57 PM
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by Hoot4570 |
Hoot4570 |
The barrel twist is one turn per barrel long 62,5cm, so around 1:24,6 inch, I cant find any info about this twist rate in 9,3mm bore and for what bullet weights/speed it meant to be. Range of bullets for 9,3x57r/360 were between 124gr to 227gr..Any ideas? Thank you There are a number of on-line calculators for Greenhill's formula. Most of them use known inputs to calculate the proper twist. A bit of fiddling and one can use them to work towards any of the variables. Example => https://www.vcalc.com/wiki/AndrewBudd/Greenhill+Formula+for+Optimal+Rifling+Twist+Rate
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