Well the temp was -10'C (14'F)when I left, wind about 5 mph from behind and steady. I had 5 different loadings of IMR 4198 and the 350 gr JRN Hornady's. All on the tame side starting at 38 and working up in .5 increments.
Things noticed. There was enough unburnt powder on the snow to load another shell.. Accuracy, best group (all groups 5 shots at 100 yards) was 2.6 inches centre to centre at 38 gr. Worst over six inches at 40 gr. I did have a nice group going at 39.5 but a flyer took it out from 4 shots at 2.02 " to 3.5" with the flyer.
I think/know that the scope I'm using is part of the problem. The 2" bull that I'm using dissappears behind the crosshairs at 100 yards so it is kind of hard to have consistent point of aim. An upgrade is in order if I expect to tighten these groups up.
The table I brought to put my chrony on was too low to use so I didn't chrony any of the loads. Just judging from the different manuals I have I would expect velocity to be in the 1700-1800 fps range. Definately a sharper recoil than some factory 405's I shot for warm up.
Of note. After I had shot about 30 rounds, I sort of just looked around and I felt a great big smile come across my face.
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I thought to myself, Man!!! I could sit here and do this all day!!!
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I think I'm hooked.
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HA