I recently bought a AR10 in 6.5 and before ever shooting it, I put on a brake/mount for my suppressor. When we took it to the range, it was short stroking like it was under gassed. Would putting on a brake effect that in any way?

After mounting the can, it ran like a top. I am thrilled, but was curious if the brake made a difference. I have spoken of this gun in multiple threads, so my apologies for my redundancy.

PB