Originally Posted by ShootnMathews
I started at 50 grains and started to work up. At 50.4 the bolt was just barely starting to get sticky. First chance I get I'm going to load some ladder charges starting at 50.6 up to 53 and see what the gun does. I don't want to have to carry a hammer to knock the bolt open with.
I would be satisfied with 2850 with the 4831. I'd like to find some Retumbo and try to get it to around 2925 or even a little higher. As much as I shoot I'll prob never burn the barrel out. I just want to flatten it out some, and hit my target.
The drop today @ 500 yards from a 200 yard zero was 48.5". My 243 with a 95 grain bullet only drops 53" with a 100 yard zero. Kinda frustrated, bummed, .....need help.... Need Retumbo I think.
The first thing I did with my new rifle was to load a series of loads to try and find the maximum load with Berger 140 VLDs and H4831SC. I loaded from 48 grains to 53 grains without reaching what I considered a maximum load. I stopped at 53 grains because that was 2 grains over the max load in the Berger Manual. The primers were flat, but no flatter than at 51 grains. As for the sticky bolt you are getting, is the bolt handle hard to lift or is it sticking when you try to pull it to the rear. I always grease the rear of the bolt lugs on all my rifles to prevent them from galling. None of the reloads I've tried have made the bolt hard to lift but when the loads reach near max the bolt gets hard to pull to the rear because the brass seems to be sticking in the chamber.
Don't be overly worried by flat primers by themselves. They seem to be a fact of life with my 6.5x284. They all look pretty flat.
I wasn't surprised by your 2591 fps at 50.2 gr. of H4831SC. At 51 gr. I only got 2706 fps and at 53 grains I only got 2838 fps. That's why I switched to IMR7828SSC and Retumbo. I wanted to reach 3000 fps. Both of these powders did that. At 3023 fps the drop on the Berger 140 gr. VLD is -34.31" Do be careful when you start loading Retumbo though. Berger's Manual says 58.5 gr. is a Maximum load and in my rifle, it is.
I think you and I are looking for the same thing out of our rifles.