Adg vs peterson question

[cohunt]

Has anyone compared the internal case volume of Peterson vs adg brass? (Grains of H2O)

If so are they very similar or does one hold more than the other?

 

[PddPdd]

What cartridge?

 

[cohunt]

What cartridge?

300 rum but there is usually a trend in brass manufacturers too

 

[Mike D Texas]

With 300 Norma brass I'm finding that the Peterson holds 2+ grains more water.

 

[Rhovee]

I tried ADG 338 edge and Peterson. Peterson had less capacity. But shot the same powder charge for same speed.