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.
 
I've been forming some brass for the new 7Mega, it's been quite enjoyable so far!
Mild load of H4831 at 2800fps, 180 HT
 

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