I have a smokeless muzzleloader that I shoot in a lead sled loaded with 100 lbs of lead. I shoot 61.5 gr of H4198 behind a 200 gr bullet. The recoil is not what I call "light". The lead sled takes the recoil, the Leupold 3x9 ML scope takes the recoil and the Burris inserts take the recoil. Over 200 rds through it and POI hasn't moved. For me, there is no problem with inserts and no ring marks either. I would add no lapping, and no torquing of the scope tube when using rear windage bases.jimbires said:I've stayed away from the burris rings with the inserts on my hard recoiling rifles with heavy scopes , for fear of slipping . do you guys use these insert rings on these type of rifles ? I do use these rings on my other rifles , and like them . Jim