Re: f-class muzzle break?
Quantico has two types of F-class. One is unsanctioned and one is NRA rules. The unsanctioned one is the one I have been shooting for the last several years and you can use a muzzle brake. You also get to shoot five more rounds than NRA rules. As a general rule, it is a little more laid back and sometimes you get do-overs. Sometimes, I will fire a few extra shots just to shoot up all of the ammo I brought.
The Smokin Fur Rifle Club