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Old February 8, 2019, 08:46 AM   #5
Bartholomew Roberts
Senior Member
Join Date: June 12, 2000
Location: Texas and Oklahoma area
Posts: 8,462
At the risk of being pedantic, you say the twist rate needs to match the muzzle velocity to achieve the proper rotational velocity and then say barrel length doesn’t matter. 1:7 twist is common in 8-9” .300 barrels. Going to a five inch barrel and not changing the twist is going to reduce muzzle velocity and not spin a long bullet any faster.
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