That is a tremendous difference from my observations. I wonder what I am doing wrong? I have not finalized sight in with the Weaver yet, but my recollection from the last range visit was that there is roughly 4 inches difference beteen 50, 75, and 100 yd point of impact. The results very much mirror trajectory from a 44 mag lever action we have.
Interesting!
You're not doing anything wrong per say it's just the load you're using doesn't shoot as flat. The first difference is 100 gr of Pyrodex will not produce near as much velocity as 105 gr of BH209. A full bore (.50 cal) 250 gr Powerbelt Aerolite has a slightly less efficient BC compared to 250 grain SST (.452 cal) in a sabot. Powerbelts don't seal as well as a sabot which also decreases velocity.
Here's some test results (take it with a grain of salt - it's a promotion for dead center bullets) but it does show the difference in drop of various projectiles.
https://www.prbullet.com/drop.htm
