300 WSM powders

Hunter66654 · #1 03-01-2004, 10:32 AM

My new 300 wsm is finished and a friend who shoots 1000k is working up some loads for me. So for it shoots several bullets in 1/2 inch with more than one powder. I will post the rifle specs and finished loads in a few days. Basically it has a Montana Rifleman short magnum stainless action with a fluted 1/12 Kreiger barrel. I was wondering if anyone has tried H414 or H1000 with this caliber and if so what where the results. Also , would like to know if these powders are sensitive to temperature differences.

#2 03-01-2004, 01:38 PM

What Boyd said H 4350 EXT. and I have had really good results with RL 19 too.

RuffHewn · #3 03-01-2004, 10:10 PM

RL22 and H4350, with SMK 190

H414 and W760 are highly temp sensitive as temps rise over 80 deg, aprox 2.5 fps per degree.

TOM H · #4 03-01-2004, 11:27 PM

I got my 300wsm less than a month ago and it has a Broughton 5r 1/12 twist barrel. I tried two powders and checked velocity. Wasn't happy with the velocity of N-165 with a 165 BT but got 3158fps wth 71gr/R-19. Before I rebarreled I tried just about all powders for the 300wsm. I got a 2 1/2" group at 300 yds with R-19. Good enought for elk and deer. I may try some 150 gr Scirocco and 760. I think you got a great rifle and lots of luck. May want to get on shortmag.com alot of good info on the wsm and others.

Boyd Heaton · #5 03-02-2004, 12:59 AM

H4350........

thecowboyace · #6 03-02-2004, 01:30 PM

Justa' wondering, what weight bullet are you going to use most of the time?

LDHunter · #7 03-03-2004, 02:19 PM

H4350 [img]images/icons/grin.gif[/img]

You can use a slower burning powder but will NOT likely improve accuracy or velocity and WILL likely burn your throat faster. [img]images/icons/shocked.gif[/img]

$bob$