Well today the jolly japes continued.
Opinions on these groups
I have another 2 loads here that I hadn't shot at the target so I fired them at it today, it's the same target as in the first post but I'm just shooting a few more rounds at it. So, this is it after 7 rounds:
As you can see I didn't do so well today. I'd cleaned the rifle and also taken it totally apart since firing the groups seen in my first post but I don't think that had an impact upon my group size - the only factor there was where the rifle was pointing when I pulled the trigger. As I've said with a well engineered rifle it shouldn't matter what bullet you put down the barrel, or how hot it gets, or the phase of the moon or whatever other fantasy people dream up. The only thing that matters is where the barrel is pointed when I pull the trigger and the wetware is always the weak link.
For entertainment I fired 4 more rounds at the target, taking to total to 11. All of the 4 were loads previously shot in the 7 shot group and two of them were repeats of the 2 new rounds which I fired today, just to prove that their point of impact was related to where I pointed the rifle rather than the load or some other mystical forces. So, this is the 11 shot group:
The squares on the paper are 1 inch so I'd guess the group is starting to tend towards a 3 inch group which is what everyone I've ever met can actually shoot repeatably in the field. Usefully for the deer stalker however the point of impact should be the top of the thick diamond and none of the strikes are much more than an inch from that.
Just to be clear for those who missed it that this is now 7 different loads, using 6 different bullets, in one group with no changing zero or discarding a group because of the various freak events which seem to blight the people who shoot half inch groups at 600 yards all day long.
The bottom line is that with a well engineered rifle at normal stalking ranges and no matter what the load if you point it in the right place then it will hit well enough to kill your deer pretty neatly.