Hornady H.I.T.S. calculator

looks accurate to me, assuming your bullet is constucted for the appropriate game and impact velocity
 
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It seems a little off to me. I put in 220 grains selected 2800fps and checked .338. Then I just switched the calibre to .375 and left everything the same and it dropped 300 points. Does the bullet diameter make that big of a difference?
 
gyman98 said:
It seems a little off to me. I put in 220 grains selected 2800fps and checked .338. Then I just switched the calibre to .375 and left everything the same and it dropped 300 points. Does the bullet diameter make that big of a difference?
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Sure does. A 220 gr bullet in a smaller diameter bullet is longer, and generally penetrates further. If you put the same 220 gr in the calc in a .308 it goes up 300 points from the .338.

Long and lean is better than short and fat, at least thats what the ladies say.:p
 
blargon said:
Sure does. A 220 gr bullet in a smaller diameter bullet is longer, and generally penetrates further. If you put the same 220 gr in the calc in a .308 it goes up 300 points from the .338.

Long and lean is better than short and fat, at least thats what the ladies say.:p
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Wouldn't a larger diameter bullet create a bigger wound channel though? Thus causing more trauma and damage? Penetration is important but to say that a 375 bullet is less leathal (less HIT points) than 338 with the same impact speed, I just have to question that.
 
a 250 grain bullet in 338, assuming identical bullet construction, will penetrate much deeper than a 250 grain bullet from a 458 win mag. Wound channel might not be as large, but it will be deeper and overall tissue damage volume would be more.
 
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