RE: 245 Gr. vs. 270 Gr. Powerbelts
There should be a ballistics chart in the backage. I'd check that. I think it gives trajectories out too 250 yds for 100 gr. and 150gr. charges. I have found with a 295 grain powerbelt theres about a 3" drop with 100 gr. and about a 1.5"-2" drop with 150gr.