I was testing out my new-to-me Bantam that I have been working on tuning. I recorded a 0.23" 5-shot group at 55 yards, HFT style on bucket and sticks in a light breeze with snow fall (see second sheet target #13). I think that I now have it tuned well enough for Field Target this spring.
I wanted to see how many shots I was getting at a 190 bar fill: 90 good ones down to 150 bar, then 5 or so with an apparent POI change (plus 10% air pressure loss due to temp changes). Anyway, I was testing out the 13.43g .177 JSB Monster MK2's to see how they shot. Attached are the two pages of groups - I had two 0.53/0.53" groups, several at 0.7" to 0.8", plus one 10-shot group at 0.85". I nearly fell off the bucket after that the 0.23 because I could see how good it was. My fingers were so cold that I could barely feel the trigger and load the pellet (all hand loads). Note that I did not adjust the POI, since I wanted to see how it changed over the fill pressure.
I wanted to see how many shots I was getting at a 190 bar fill: 90 good ones down to 150 bar, then 5 or so with an apparent POI change (plus 10% air pressure loss due to temp changes). Anyway, I was testing out the 13.43g .177 JSB Monster MK2's to see how they shot. Attached are the two pages of groups - I had two 0.53/0.53" groups, several at 0.7" to 0.8", plus one 10-shot group at 0.85". I nearly fell off the bucket after that the 0.23 because I could see how good it was. My fingers were so cold that I could barely feel the trigger and load the pellet (all hand loads). Note that I did not adjust the POI, since I wanted to see how it changed over the fill pressure.
PS. The speed drops about 110 FPS from 10.3 to 13.4. And yes, it will definitely make ranging much more critical at 40 to 55 yards.