Originally Posted by
littlekid
I shoot premiums because I'm always looking for "keyhole" patterns when I'm practicing/sighting in (out to 300-400yds). I figure, if I can achieve this when relaxed, I can acheive similar when my heart is racing and shaking like leak when the "big" one steps out. The Premiums have been the only ones that have been able to produce the same results time and time again. But, I'm concerned about the past two shots.
I don't understand your term "keyhole" pattern. The term keyhole generally means your bullet isn't spinning straight and flying true during flight
and is smacking the target sideways causing it to breakup immediatly on impact.. The bullet is actually tumbling.That could be your problem.I don't think you should be questioning the caliber, but your choice of bullet style
and or bullet weight for the particular rifle twist your gun has, at distances
you shoot.Also it may have alot to do with velocity of your bullet your shooting. If the bullet is going to slow it will tumble as well.Are you shooting TBBC bullets in the Federal premiums?