Holland's new Radial brake-Looks similar to his Quick Discharge, but works even better.
In the last two clips I am only holding it with two fingers!
First clip I am holding it with my typical grip.
http://www.longrangehunting.com/forums/f73/holland-radial-muzzle-brake-xp-100-handgun-36059/Best brake I have ever used to date.
The 7mm Dakota cartridge is the same diameter as the WSM case but is 4/10 of an inch longer.
I have used either 75 to 76 grains of powder with a 200 grain bullet.