To avoid me further derailing the 17HMR thread I’ll post my reply to @Heym SR20 etc here.
I guess I have become sloppy, with light cartridges and light rifles then just supporting the butt is enough. The low comb and high scope also means that the butt is in danger of slipping out of my shoulder in prone so the hand below probably helps arrest that.
I will have a look at an alternative prone position but apart from the first one, each group was acceptable to me at consistently well within an inch with the copper, which for an old second hand sporting rifle is well within the required minute-of-fallow for next week. The scope-to-comb relationship definitely looks a tad queer in the pictures. If I can solve that it may free up my left hand. I will measure my mounts.
I guess I have become sloppy, with light cartridges and light rifles then just supporting the butt is enough. The low comb and high scope also means that the butt is in danger of slipping out of my shoulder in prone so the hand below probably helps arrest that.
I will have a look at an alternative prone position but apart from the first one, each group was acceptable to me at consistently well within an inch with the copper, which for an old second hand sporting rifle is well within the required minute-of-fallow for next week. The scope-to-comb relationship definitely looks a tad queer in the pictures. If I can solve that it may free up my left hand. I will measure my mounts.






