Thread: Testing a conventional approach to load development

Originally Posted by gimp

100m or 100y? @dannyb

yards, of note the targets are not to scale despite the PDF saying they are....

And here is the latest evidence this approach just plain works. A 6mm ARC barrel that I'd shot for 200 rounds or so, showed promise as an ARC with the 103s but never "properly tested". Rechambered to 6mm CM.

Taken to the range last night and a ladder shot up to book max. The results analyzed using GRT (calibrated to the resultant case capacity and actual velocity etc.). It suggested an additional 50-100 fps was still on the table. Not wanting to run this rifle "hot" I rounded the load up to an even number and confidently loaded 50 rounds.

At the range this arvo to test and here are the results, which include the cold bore shot - I got interrupted hence finished at 9 shots. All good for hunting to 500M

Note that the shot order is not as labeled, the cold bore shot is in the middle of the group, maybe #8

I did get humbled a bit later, we went to 571M to shoot some gongs and despite a solid zero from the above group I cocked up the settings between the scope and Strelok and couldn't hit the 6" gong to save myself . .,. It did eventually get sorted but shows how many things can go wrong in this LR game