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Old January 28, 2021, 06:58 PM   #19
44 AMP
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Join Date: March 11, 2006
Location: Upper US
Posts: 24,293
Quote:
the higher PSI should more than make up the difference between the two and the 450 should out perform the 45-70.
If you can get a significant difference it will be due to the rifles you're shooting and loading to non-standard pressure levels.

A 300gr .45-70 in the 1800fps range is within the capability of the 1886 Winchester loads. And, if you have a stronger rifle, the .45-70 can go well beyond that. There are loads for the modern 1895 Marlin driving Hornady's 350gr to 2100fps and out of the Ruger No.3 the same bullet can do 2200fps.

Can you match that with the .450 Bushmaster? Can you beat it??
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All else being equal (and it almost never is) bigger bullets tend to work better.
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