I went to the range last night shooting my 45-70 expecting to get one result but getting quite another. was wondering if some of you might of done some work with these loads and could explain why these results showed up. on both loads im using 65 gn of 2F compressed with a milk carton wad separating the powder from the bullet. both loads shoot very accurate but when i but all the verified data in several ballistics programs, the results for the 500 grain load are exactly as the programs state however for the 396 grain bullet they are not even close. i will add a picture below with the trajectory but here are the details to work with.
Gun: H&R 45-70 buffalo classic
lighter bullet: NOE 460-396-RF PB AE2 .2777 BCE 1310 FPS
heavier bullet: Lee 459-500-3R .443 BCE 1200 FPS
both are loaded with 65 gn of 2F compressed.
I am zeroed at 220 yards and both loads are accurate. what i was trying to achieve was a flatter shooting load then the 500 grain greaser for hunting at the longer ranges and something that had a bit of meplat on the front. any insight to help me understand why i got these results instead of the ballistics program results would be appreciated. also if any of you have insight on what i might expect down range at 300, 400 and 500 yards would be appreciated as i dont think the ballistics programs will be right. I was clearly expecting the 396 grain NOE bullet to shoot flatter not the opposite.
Heres my drawing.
Thanx for your help.
Dan