I have to confess firstly, that I am not a bench-rester. My interest is in finding the most accurate ammo for my CZ455. Using a Caldwell front rest and a Bigfoot/Jumbo rear bag with ears. Concrete benches at Belmont. The trouble starts when the rifle is touched with my hand. It will flick horizontally and the groups are rubbish.
Tried pinching the trigger between thumb and fore finger to eliminate as much rifle-contact as possible. Scope is a Weaver T-36. Tried firm grips with the hand. Tight grips while pulling in to my shoulder. Nothing eliminates the horizontal flicking.
I have used this rest and rear bag to record 4 consecutive groups of 3/8" (about) at 100 at Belmont with a 223 range rifle, so I like to think I'm not a novice but this gun is making a monkey of me. It is a vastly different to the 223, having a plastic stock and 161/2" barrel.
I have wondered if its lack of weight is a problem. Cannot recall "the flick" with the 223 which must have weighed 10 pounds.
Tried squeezing the fore end of the CZ between the ears of the front bag, hoping it would slow down the flicking but there was no change in the rifle's behaviour. I have bedded the CZ's action myself and made a crude, stiffer, floorplate/trigger guard which I also bedded.
Well, I'm stumped. Can any of you help please?