300 PRC vs. 300 RUM

[Steel head]

what grain bullet you pushing in your 338 edge?

265 & 285

 

[Earnhardt]

In my 338 Edge, I shoot 250's with 101 grains of N 570 @ 3200+

What are your 265's moving at with 95 grains?

 

[Chickentoast]

^Damn, 101 grains, +P or other improved chamber, or simply lots o' freebore? What reamer or FB spec did you use?

 

[Steel head]

In my 338 Edge, I shoot 250's with 101 grains of N 570 @ 3200+

What are your 265's moving at with 95 grains?

I’m over 95
A leisurely 3030 with 265 solids.
I’ve had them past 3100 but at current speed it’s a sweetheart.

 

[Earnhardt]

^Damn, 101 grains, +P or other improved chamber, or simply lots o' freebore? What reamer or FB spec did you use?

Have you tried it?
You don't need a +P chamber to put that much powder in a case

 

[Chickentoast]

Have you tried it?
You don't need a +P chamber to put that much powder in a case

Mine is a 300, and current barrel is not throated long, so I see pressure starting around 96 grains. I have a new barrel that is throated for 4.155 COAL with 250 A-Tips's, so maybe I'll be able to fill her up in the style of Piper Perri.

Been toying with the idea of an Edge vs something larger, 33XC or 375 CT, so interested in knowing the limits of different barrel trims.

 

[Earnhardt]

When using lighter bullets in the 300 RUM, 95-98 grains of N570 is not a problem
Quickloads tells me I'm still in the safe zone so to speak...