04-24-2012, 02:12 PM
I use H335 to push a 100gr TTSX out a 14 inch TC contender at 2600. Lead core bullets would have more case room and would likely perform as well with a SBR. I think the trouble with a department is having different loads for different barrel lengths, as the optimal load for a SBR may not be safe for a 24 inch rifle in hot weather, or the Rifle load may not perform in an SBR. I'm sure it would be possible, but I'm also sure that a department would want you to pick a mag and shoot without worrying if this is the right load or not. This load does work at higher velocities in my rifles, but I haven't checked all scenarios, and all possible increased chamber pressure situations.