jakeAMP wrote: ↑Fri May 15, 2020 6:28 pm
Also, shooting them back to back, damn the H110 is way more quiet.
That’s my biggest complaint about a powder in theory “optimized for the cartridge”
First thing I would do is add powder, that’s always the best solution
Chasing good loads with subs is very frustrating. You won’t really have a pressure issue with that load before you have a velocity issue. You might load a few at the original 10.7 grains to have a better idea of true velocity change from seating depth change. Other wise what I do is seat deeper until the velocity is higher than I want, or the ES is acceptable. Then you start all over again tuning for accuracy.
Honestly that’s why most sub loads shoot like crap. It’s a lot of work to get MOA results, and people won’t do it. It’s common to hear something like “that’s a bench rest technique, I don’t need it”. When the truth of the matter is, all loading for bench rest is, is paying attention to detail. Nothing more, nothing less. If you can put together a sub load that is MOA at 200, you’re better than the average handloader.
You might sort your brass. Headstamp first. Military brass is further sorted by date code. Example LC 12 all in one batch.
Then you can sort by weight, volume, base to datum after sized, just depends on how critical you want to be.
When I look at your original string of 20, I don’t see an ES of 130, I see 3-4 loads 40 fps apart. So what I often do is number the cases and sort by velocity. Many times you can prove it’s the brass after a couple of loadings. Then if you go back and check weight, volume and external measurements you actually learn something. You see a heavy case has less volume and a measurable velocity difference.
Then before you get all wrapped up chasing numbers, shoot it at 50/100 yards. It might surprise you, then you can decide I’d you want to work it more. Acceptable at 50 might fall apart at 100, or maybe not until 200.