This is how finicky some rifles can be with how hard you hold. These were fired prone on a bipod with a rear bag. The center 3 were letting the rifle do it's thing with a light hold aiming center of the blue cross, the top two were with the bipod loaded and a firm grip (POA was top of vertical blue post). The shots opened up several MOA with just a difference in hold. This rifle is consistent in doing this. I have never seen a rifle this bad. This dude has a bit of recoil and so I have to consciously make myself gingerly shoot it... it is not so gentle in return.
Added: the picture turned sideways when I inverted it, so there are still three center shots and the last two are the ones on the left.
Courage is just fear that has said it's prayers.
The people trying to say the 2nd Amendment is outdated are probably the same folks that would say the same thing about the Bible.
On the bench of prone with bipod I usually only grip with my fireing hand . I too have a very strong pulse and limited options for true long range shooting. Also there tends to be lots of grass and brush in the way for anything other than standing shooting . Whenever possible I use a staff or tree to help steady the rifle. For long range shooting that doesn't work so there are plenty of shots that must be passed up.
Whenever I can I hunker down onto shooting sticks. A lot depends on the rifle I'm shooting as to whether verticle or curved grip. On my 6.5 or 223 I absolutely prefer a vertical grip. On my 9.3 and larger a slender curved grip. But I don't usually shoot them from prone. Most grips need to be fitted to my hand on the larger caliber rifles or I always cant the rifle.
For offhand big game shooting I use a very short lop. 13" and sometimes less. For precision and lr shooting I use 13 1/2-14" . I do everything I can to make the back half of the rifle fit me for the type shooting that rifle will primarily do. I want to Not put any incorrect pressure on the stock to get it on and keep it on target. When my rifle fits me, my shootin improves far beyond the numbers say they should.