SHERMAN MEGA LINE

What length barrel and speeds?

I'm looking to run this in a 32" barrel.
With that length it's gonna get all the powder burnt even with n570.

Here's Rich's post

The loads that I shoot in mine with a 25" barrel are the 175 EH at 3180. Multiple firings (8-10) with no signs of losing primers,etc.
I run the 195 at 3020 at two grains under max with great results also. The MEGA will load much shorter than the PRC and has a better neck and 40 degree shoulder. It will run on a medium action or long action. The plus on the PRC will be factory ammo.

6" more barrel length I thought his 7mm was a 26" and his 300 was 25"?

Either way at least 6" more barrel with a 32"; unless you have a tight bore it would seem a top node somewhere in the 3100 range would be reasonable.
 
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