That is dedication!!!!

12F and windy!!!!

In the 50cal that 220 is moving pretty good and running it through a calculator it looks pretty good out to 200 yards. The bullet is even still within it designed velocity. I used a .165 BC though.

Can you load one of the 458s in a Harvester black CR? They might be a bit too tight in a T/C. Some guys claim they get better fps using them instead of a 50x458 MMP. In those temps though i wouldnt want to try it.

The carbon in the plug looks minimal. Very similar to the build up in my NFPJs and Win209/BH209.

And very nice shooting, i would have been shaking so hard just hitting the paper would have been good. I dont mind the cold if there is no wind but i still draw the line at about 25F for recreational shooting.