Was needing some first hand answer on the my question : to crimp or not and will the 77TMK or the 77SMK with cannelure be the best choice for an AR as far as the crimp or not crimp question goes.....
Crimp or not ?
- Thread starter Steve Ladino
- Start date
Sierra tests all their bullets for accuracy standards without any crimp. Crimping adds another bullet balance and muzzle velocity variable. The cannelure alone unbalances bullets; the reason Lake City arsenal match bullets were no longer cannelured.
Size case necks to hold 77 grain 22 caliber bullets tight enough to stay in place until fired. People have done that with much heavier 30 caliber match bullets for semiauto match rifles since the 1950's.
Size case necks to hold 77 grain 22 caliber bullets tight enough to stay in place until fired. People have done that with much heavier 30 caliber match bullets for semiauto match rifles since the 1950's.
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