best powder for 300 win mag and 180grn bullets

[Adikted]

I just got a closeout Tikka T3 with a 1/11 twist so I'm kinda limited on how heavy a bullet I can use.

I tried using IMR4831 as I'm sitting on a keg of it but the only load that shot acceptably was around 2900 fps. Everything else shot like complete garbage.

My biggest concern is that I don't want to end up buying 5 different powders looking for one that works, not to mention all the trips to the range (been 4 times already) so I'm curious to know if there's a powder that's pretty likely to produce good groups and decent SD from the starting load to the max? I'm not obsessed with speed but I don't think 3000 is asking too much.

I've seen H1000 loads posted quite a bit, is it a pretty safe bet or should I be looking in a different direction?

Also what primers have you guys had success with. I wound up trying WLRM, CCI 250, and BR-2's. The WLRM's produced the most velocity but grouped awful, The CCI's shot Identical velocities but the groups on the BR-2's were half the size, I'm worried the BR-2's wont be strong enough for H1000, unfounded?

 

[Barrelnut]

What bullet and weight/weights are you using? Some powders work better with heavy bullets, some better with light ones.

 

[PGJPJ]

When I used to shoot the 180 Noslers, RL22 did quite well. 75.0 grains, WLRM and CCI250 both worked great.

 

[Barrelnut]

Oops, didn't see the 180 in the header. I would drop down to a 160 gr. bullet and try the IMR4831 with it. I have seen 11 twist Sakos start to open up with 180 grn. bullets. A 160 bullet might work a little better with the IMR4831. That should definitely get you over 3000 FPS too.

 

[Hawk in WY]

Just this morning shot a sub half moa group with 180 gr Accubonds and H1000.

1:10 Krieger barrel.

Works for me.

 

[tbrice23]

7828
Long or SSC.

Very accurate, great velocity, predictably stable, and easy to find.

 

[Adikted]

Just this morning shot a sub half moa group with 180 gr Accubonds and H1000.

1:10 Krieger barrel.

Works for me.

what primers do you like with the H1000?

 

[Adikted]

Oops, didn't see the 180 in the header. I would drop down to a 160 gr. bullet and try the IMR4831 with it. I have seen 11 twist Sakos start to open up with 180 grn. bullets. A 160 bullet might work a little better with the IMR4831. That should definitely get you over 3000 FPS too.

I'm using 180gr NBT's , grouped three shots at 1" overall (edge to edge) at 200 yds with 70.5 gr on a BR-2 so I'm hoping i can get that bullet to work a little faster with a different powder. While testing it pretty much shot bad until it didn't.

 

[Hawk in WY]

WLRM were my first choice and worked fine.

Have not tested anything else.

Started with 0.05 off the lands.

See no reason to change either.

This is an elk hunting load.

Half moa near max is good to go in my book.

I suspect fine tuning this load (80.5 gr H1000), primers and COAL could get smaller groups but with what I have already if I do my job out to 500 yards I have meat in the freezer.

 

[Jayjay]

180 Berger . 75.0gr of Rl22. Was the magic# for my gun

 

[tbrice23]

Berger doesn't make a 180 grain.

 

[Jayjay]

My bad 185

 

[tbrice23]

Thats better.
75 to 76 gr of Rl22 has been a sweet spot on two of my 300wm. But 7828 has been better in most every way , for me anyway .

 

[frankinaustin]

I have two rifles in 300 WM and both have good loads with 180 NAB:

73.0 IMR 4350, NS Nos, CCI250, 3.54 COAL .015 Jump (slightly warm)

69.0 IMR 4350 NS Nos, CCI250, 3.54 COAL unk Jump (not warm)