300 win mag what powders?

What do you guy's like to load in your 300 win mags? I've got a pile of H4350 and IMR 4350 but here good stuff about H1000. Gun really likes 200gr bullets of that matters. But I have everything from 125gr-220gr and everything in-between for 30 cal that I plan on playing with.
IMR 4350 Barnes TTSX 168 grain to 180 grain and Berger 175 grain are my go to in Colorado.
 
Any updates wild ??? I’m really liking the 215M, 77 ish grains of h1000 and 215 hybrid or 212 eldx both shoot very well for me.
The gun is shooting half inch moa with 78gr of h1000 behind a 200gr Partition. Working up a load currently for 180gr Accubonds and it's looking promising. On the other hand I am having a time trying to dial in the 220 gr semi spitzer Partitions. Tried a few different loads and just can't get much better the 1.5 moa.20250622_120741.jpg
 
The gun is shooting half inch moa with 78gr of h1000 behind a 200gr Partition. Working up a load currently for 180gr Accubonds and it's looking promising. On the other hand I am having a time trying to dial in the 220 gr semi spitzer Partitions. Tried a few different loads and just can't get much better the
I'm partial to H1000 because it's so consistent and I know the jug I bought this year will produce the same results as the jug i boight 8 years ago.
-VV powders can become unobtainum for months to years at a time during shortages or for no reason at all so I stopped loading anything with their powders.
-Ive never used RL but it has a solid fan base for a good reason, I just got hooked on H1000 and stopped searching.
Are you doing full prep on the brass? Have you shot factory loads through the rifle to give you a baseline of what it prefers?
 
I'm partial to H1000 because it's so consistent and I know the jug I bought this year will produce the same results as the jug i boight 8 years ago.
-VV powders can become unobtainum for months to years at a time during shortages or for no reason at all so I stopped loading anything with their powders.
-Ive never used RL but it has a solid fan base for a good reason, I just got hooked on H1000 and stopped searching.
Are you doing full prep on the brass? Have you shot factory loads through the rifle to give you a baseline of what it prefers?
So when I first got the gun I ran a bunch of different factory loads from 150gr-200gr. The gun shot everything pretty well with Nosler custom 200gr accubonds definitely being the best and the groups slightly yet consistently opening up as bullet grain went down. As for brass prep I'll be honest I could almost certainly do a better job. It's definitely clean but I should be more diligent with trimming and sizing.



I've been really happy with the h1000 especially married with the 200gr Partitions. I bought 2 pounds when I started down this rabbit hole and have used most of one. Will pickup a 8lb jug as soon as I can.
 

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