I weigh every charge when shooting Blackhorn powder. It is easy to get inconsistency in the charges when measuring this powder by volume.
YES EXACTLY! I'm a ML owner/shooter for over 30yrs, but I'm a total new'b to super mag .45 & first time exp w/BH209. WOW just WOW what a difference. It takes just a cpl grains over or under what you want to make a noticeable difference in your group size.
I got a new CVA Paramount a few mo. ago. I put a Viper PST gen ll 5-25X50IRMOA scope w/DNZ 1pc Game Reaper mounted directly to my receiver. NO RAIL.
I bought the gun to shoot it at its max capabilities so I started right off w/105gr. B/W BH209 & the PB ELR 280gr bullets. I am impressed. It's as close to an " off the shelf " tack driver ML as you're ever going to see.
After Zeroing @ 100yds 3" high I shot a 3 shot group with only 2 holes showing & they were almost touching. So that was my shooting, not the gun or the ELR'S that nobody wants to give any credit to. They blow a deer off its feet without it knowing what hit it. My 1st Florida deer was a hatrack 6pt 2.5yr old I'd say. He had just started to run, a few long strides from left to right at 135yds. I gave it a quick guess of a lead ( I had only fired 10 rounds @ 100yds until this deer) pulled the trigger & mid-stride all 4 feet in ir it got body-slammed DEAD before it hit the ground. I hit a little high 4" perhaps & a bit back from the heart shot I was trying for. I hit 6-8" before the ribcage ends. It blew an exit wound I could almost put my fist in. Deer # 2 was pretty much the same deer as #1 could have been a twin, 110 yds walking from right to left. I pulled that shot & the deer turned same time as trigger pull. I hit it a bit far back to but at heart shot level. It blew half the deers insides out in a good 3"+ exit splatter on the ground. Deer went 30yrds. Deer #3 young 4pt ( 2 days left in Fl. gun season ) I dropped in his tracks body slammed at 65yds walking almost directly at me. I shot just left of dead center at base of the neck & chest.It knocked him backwards & down instantly. I'm putting a 1pc Titanium 5 port Beast brake on it ( in the works right now & getting barrel threaded 3/4x24 ) & will be testing out some other manufacturers full bore bullets flat & hollow based, with & without wads, weights from 250,270,275,300,310gr Parkers & Fury's when the brake is installed.I must say before closing my post, to the Semi-infamous Variflame LRMP Modules;I've fired 13 rounds all at 105gr b/w bh209 and ZERO LEAKAGE. I read a wise post in what has become a home group of sorts for me. ( I'm not a big internet guy, Neo Neanderthal I jokingly say frequently.) in Modern Muzzleloader Group. We have a 36 page 2019 Paramount Update Page with some great guys. The post suggested to just slightly back out the BP from dead bottom just a few degrees. It was SPOT ON as the lovely Brits would say.
I came across this thread looking for something unrelated to this. I read all & signed up. I hope to have a great experience sharing & learning & some laughing is always good in here as well. Kind regards all from North Central Florida