Quote:
Originally Posted by amazingflapjack
My past with keyholing causes me to suggest pin gauging the cylinder bores, and adjusting the bullet size to at, or just above that measurement. Also-does it keyhole with 357 ammo?
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No keyholes with .357 ammo. Only the Precision Delta 148 HBWC keyhole and that was only about four out of 120 rounds. Hornady 148 HBWC do not keyhole. Just trying to find a solution as I purchased 1000 Precision Delta's and I am going to shoot em'.