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What bullet? Elk 300wsm

What bullet should I load in my Kimber 8400 300wsm? Hunting elk out to 600 yards max. 1:10 twist, 24" pencil barrel. Pretty lightweight overall rifle as well. It has a short mag well with hinged floor plate so I am unable to seat the big heavy's way out. Thanks,
OG
I've got a Rem model 7 in 300 WSM with a 22 inch barrel and it shoots 180 grain Nosler Ballistic tips and Accubonds to the same point of impact at 2930ish using H4350.
 
Double check to ensure the magazine box isn't binding between the receiver/stock/bottom metal. This can cause flyers, and is a 'known issue' with some Kimbers
 
Double check to ensure the magazine box isn't binding between the receiver/stock/bottom metal. This can cause flyers, and is a 'known issue' with some Kimbers
Thanks! I did check that as well. No issue noted. I also tested it against some factory nosler partitions which grouped right around 1-1.25"
I'm going to mess around with my seating depths and see if that makes any difference
 
I'm going to mess around with my seating depths and see if that makes any difference
Im not certain if your 2" flyer is random or part of the group size.... but when I first tried Hammers I was getting a 1.5moa group size in my 280ai and was disappointed being a new rifle. Hammer suggests that their bullets are not sensitive to seating depth, so I spent a lot of money on Hammers and powder trying to shrink the load to no avail. Finally on someone else's advice, I did a seating depth test anyways and found a .75moa node with my Hammer bullet, happy now.
 
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