Two words, "lead sled". I didn't need a lead sled with my CZ 375 H&H, but I probably could have used one. When I had it rebarreled to 500 Jeffery that was a different story! I only shoot from the bench (always with a lead sled) to do load development and get initial sight in. Then I sight in without it off hand and sitting to make sure it shoots to the same point of aim. I can shoot a box of 20 570g TSX's at 2300 fps without any issues offhand or from the lead sled. I shot 8 from the bench before I bought the lead sled and got a such a bruise my wife sent me off for X-rays lol ...

Get a lead sled, a good investment at under $100 ... Also dry fire five or 10 times before you start shooting at the range and every two or three shots dry fire some more. Also, practice dry firing at home. It will prevent flinching and make you a lot more comfortable with the rifle.

Regards,

Chuck