Load data for 300 Win Mag/Sierra 155 hpbt/IMR4831 or RL22

FzyMtnMan · Rookie Member Joined: Jun 21, 2009 Posts: 2

Starting point for powder weight for IMR 4831 and RL22?
Cheers

Pumpkinslinger

Did you try the powder manufacturers' web sites?

chambered221

Welcome to Hunting Nut !!! Howdy

My 3rd Edition Sierra manual does not list the 155 bullet or RL22.

However it does list the 150’s with IMR 4831 starting at 71.3 (2900 fps) to a max of 77.5 (3200 fps) w/24 inch barrel.

ElyBoy

Like Pumpkin-Man said.

Go to the IMR web site.
All the information that you need will be there.

Eric

SingleShotLover

155 GR. SIE HPBT IMR 4831 71.0 grains - 2963 fps 48,100 PSI 76.5C (max-compressed) 3226 fps 61,600 PSI

For RL22 the closest match I see is:

Reloader 22 150 grain Speer softpoint 80 grains (max load) 3,227 fps

FzyMtnMan · Rookie Member Joined: Jun 21, 2009 Posts: 2

Appreciate the guidance.
Looked around some sights and not much info for the RL22 and the Sierra mix. Have gathered some comparables throughout my search and will give it a start.......will post the results.
Cheers