Good deal markm, your @ week 4 I'm at 3rd trip, LOL Great day today 35 degrees and no wind. I did load some 88s up but whatever I did wasn't good, LOL they were 3-4MOA @ 100 yards using Varget, so obviously I NEED more work & research. That could be trying different OAL, powders. primers etc, brass was all new with all the normal treatments on new brass. But with that said here is some stuff that was loaded for my 18-inch AR with mixed results, some pretty decent and some good enough for 100yrds and under blamo-ammo. As the weather comes & goes, I'll keep trying, I want to find a good mix on the RMR 69s the Nosler 77 blems and of course the 88s, I won't get to the 600-yard range till spring so everything will be @ 100 till then. I didn't have any 77s today. Targets are marked 1-5 with a 2nd group of 69s as the last group and they shot better than my 1st group of the same load & bullet. Anyways it's a work in progress for sure & while I'm not seeing instant or similar results as you markm I'm working on it,LOL It certainly liked the Sierra 55grn BTHP in front of Varget & CCI primers. Also I wrote WRONG on the targets,#5 is the same load as #1 NOT #2.
https://i.imgur.com/zv5CSvL.jpg?1