Originally Posted by Iron Worker
Thought I had a good bullet Load combo. I was shooting 41.5grs of H4350 behind a JLK 65gr LD bullet. Some of the bullets grouped with in 1/2 MOA but I'd look closer at the target and some of the bullets key holed or turned into little pieces because there was a bunch of odd looking small holes. I'm shooting a Rock Creek 8" twist 5R BBL. My loads MV were average 3,680 FPS. Ok so I can't shoot a coyote with fragmented bullets. Hornady 75gr A-Max were unconsistant. What about Berger VLDs ? Will they hold together? Wanted to shoot bullets with High BC but if the bullets can't make it to the target in one piece????????
I am surprised that this is happening with a 5 groove barrel, this is normaly a 3 groove barrel thing.
The Bergers might work with their J4 jacket, but anything is better than Hornady's copper-butter jacket.
I have had this happen a few times with a fast twist barrel and the only cure is a Sierra Match King bullet they have a much tougher jacket and still have a very good B.C. try the 69gr,77gr or the 80gr SMK.
p.s. how many rounds do you have down your barrel ??????????