The temperatures were forecast to stay low for the next few days, so I moved the ice climbing to Sunday, to allow the ice to get in better condition.
Here are some photos from Saturday's short range trip.
This was my scope setting from a previous trips for 600 yard shooting. The beauty of the Mosin PU sniper mount is that you can't zero the scope ... instead, you have to zero the mount. I'm of the opinion that it's better to leave the mount alone, and just use dial offsets.
Consequently, my 100 yard zero used an indicated ~10m setting on the dial. Shooting out at 600 yards, with a "400" meter setting, you have about the same angular distance on the dial from "400m" to "550m" as you do from "10m" to "90m", so this made sense, and I just dialed my scope back to "10m" for Saturday's 100 yard shooting.
40 rounds later ...
The first sight-in shot was at the 9'oclock position, and of the next 4 shots, 3 of them were a bit lower.
Moving on to my first target dot, all 5 shots were consistently low. So, I moved the dial up progressively for shot groups #2 through #5. During shot group #5, I had a misfire. Afterwards, I had 9 rounds remaining, so I fired them at the sight-in dot using my scope settings from group #5 (about "65m" on the elevation dial).
So, that's odd. I don't know why I have this discrepancy in my elevation settings. I'm going to go back and see if I can replicate the elevation results, and tighten up the group sizes through some additional trigger work. The groups are averaging around 3.5 MOA. For comparison, at 600 yards, I was shooting about 3 MOA, and one of my guests shot a 2 MOA 5-shot group at 600. Oh, yeah, and with the PU, you have an absolutely abysmal cheek weld; it's more like a chin weld.
Ah yes ...
Is glorious misfire of revolution, comrade!