I have tried and tried this stuff, and can't seem to get it to shoot well with 180gr partitions, 200gr accurbonds, ok with 180gr tripleX, 190gr matchkings. Accuacy is so so but the speeds are incredible I can get. I can get 3350fps with 180gr partitions, but get 1.5" groups.

Anybody else having this trouble. I seem get rock solid results out of Retumbo, and H1000. Even 4350 with 150gr bullets. And some good results with RL22.

Sounds funny but try this. Shoot the same groups at 200 and /or 300 yds. My Lss shot .65 at 100 yds and .734 " at 200 yds!

i know bullets are different here but i use rl22 and rl25 in my 7mm ultra mag and they do great. rl22 on 139/140 grain bullets and rl25 on 150/154 grain bullets. im not at max either. see below

139gr sst/interbond
87 grains rl22
3.560 col
215m

154gr sst/interbond
92 grains r25
3.590 col
215m

im sure your bullet weight changes alot of things but i saw the same thing up around max. charges. i backed off in 1/4 grain increments till i saw them tighten up. how does factory ammo shoot. if they shoot good use their setting depth and work with the powder increments. mine liked a clean barrel. i could shoot .208 inch groups at 100 yards with the 139's and .33 inch groups with the 154's but after 5 shots the gun liked a good scrubbing.

I get good results with those bullets using IMR 4350. I get less than 1" groups at 100 groups.

I have a few guns that don't like max loads. I usually find out what max is, then back off a bit. Usually accuracy improves.As POP mentioned... some guns tightin up at longer ranges. If your gun does, looks like you have a good load.
Looks like you already know what works. I like the NP'S.

Yea, I have some good loads, but would like to harness that incredible speed I get from RL25. It would be nice to launch 180gr pill at 3350fps accurately. But its sure not the end of the world if I don't.

200 NP and RL25.going 3235 fps.both groups are right at .8,the gun shoots everything about the same,group wise but for 180`s up the RL25 is the fastest.I get over 3400 with 180 SGK and RL25 with groups about the same.150`s and I have to go to RL22 to get the speed.