300 grSierra in the 378 WBY

FOTIS

Range Officer
Staff member
Oct 30, 2004
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I was thinking about using this bullet in my 378 Bee. I do not really trust them with the jacket core separation in the past so I played with it.

Out of curiosity I shot one 300 gr Sierra gameking in wet newsprint out of my 378 Bee at 3050 fps MV. Impact was at 40 yards. Opened up to 70 plus caliber and retained 214.5 grains. Now if all of them do this I am IMPRESSED! Will found out tomorrow what they shoot like.



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Let me tell you - that is one mighty fine varmint bullet! :grin:

Actually, that looks great. I won't be surprised if you get some core-jacket separation, but still, that's a lot of bullet to smack an elk, moose or bear with.
 
You aren't kidding Fotis. That bullet seems very tough for a Sierra. At those kinda speeds and newsprint, that is a heckuva good recovery with any bullet. With 300 grains of bullet, it seems like it could separate a little and still weigh more than a 270 starts with!
 
Hopefully the krieger likes her on my 378
 
Very impressive performance on that bullet. I've always like Sierras.
 
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