powders for 300 WSM

[flyin lizard]

Hello gang I just picked up a 300 wsm and would like some ideas on powders to try. I used to have a 30-06 and if memory serves me right IMR 4350 was a good performer. I will be using 165 to 180 gr bullets and deer will be the main target and maybe an unlucky Catskills N Y bear..
Thanks Paul

 

[Shortmagman]

I have reloaded the 300 WSM since 2002 and I have found that a number of powders work well with 165-180 gain bullets. My favorite powders are N550, RL-19, and IRM-4831 in that order. IMR-4350 will also work. If you want me to be more specific let me know.

 

[snowpro440]

this is what works for my eclipse in 300wsm 69 grains rl-22 cci mag primer win cases nosler 180 gr partition = .375 group @ 100 yards . hope this helps you

 

[B23]

Alliant has developed a new powder just for the WSM and WSSM it's called R-17. It's very hard to find but it offers better FPS than do the others.

 

[flyin lizard]

Thanks guys I appreciate the info.

 

[Turdmucklydunn]

I have to agree with Shortmagman. The best by far I have found is the N550 and RL-19.

 

[Beanfieldrifle]

Also consider H1000, I have good luck with it in my .270WSM. It is not as slow as R22 but slower than the R19. I found a few years back that R19 was a bit inconsistant between lots.

I will have to look up the R17, never heard of it.

 

[B23]

Did you mean not as slow as RL25 maybe? H1000 is slower than RL22.

 

[Overkill338]

Alliant Powder: Reloder 17

Smokeless Short Magnum Rifle

With Reloder 17 reloaders have a powder that meters easy and consistently while providing maximum velocity even in extreme weather.
This consistent performance is what reloaders have come to expect from Alliant Powder - and Reloder 17 doesn't disappoint.
Designed for short magnum case capacity
Similar burn speed to IMR 4350
Meters easily and consistently
Consistent maximum velocity in extreme weather conditions

 

[NZP]

I had good luck with N-160..you should give that a try. i got good velocity and accuracy with it

 

[nite owl]

Give Ramshot Hunter a try, excellent powder for the 300wsm.

 

[WunderDog]

I have had excellent luck with H4831SC in terms of accuracy and pretty decent velocity. I am running these out of a 15" barrel though so I am somewhat inclined to try a little faster powder to try to maintain accuracy and improve the velocity a bit.

 

[BountyHunter]

I just ran some Barnes 168TTSX with RL 17 at 3351 fps and single digit ES and SD and sub .5 MOA accuracy.

Tested out on MO whitetails this week also.

BH

 

[jbroadnax]

I have had great luck with 180 gr AB and 69.0 grs. of Supreme 780. Another great recipe is 70.0 grs of Vit N560 with the same bullet.