The side discharge brakes do well with rearward thrust but the pistol can still raise the barrel or hop on recoiling. Mine only has two small drilled holes on top of the brake so it hops a little. I installed a Vias radial brake and it lowered the impact point 3 inches at 100 yds, with not much recoil difference felt . This was on a 14 in 300 Whisper barrel with midrange loaded 150 gr bullets . With your heavy barrel either should work but I would go with a solid bottom radial brake. Both are very loud, with the side discharge being [WAY MORE] very unfriendly to anyone to sitting to either side of you.