300WM load with 175 Sierra's

DENWA

Does anyone have the Sierra recommended load for the 175gr HPBT?

They usually have a load velocity and accuracy load. I'd like to use H1000 or IMR 4350 or 4064.

Thanks for any info.

CapnMidnight

Try 72grs H4831sc & Win LR primers, I have used it in my 300 win mag for 20 years or more behind 180 gr Nosler partitions. Good luck.
W.D.

DENWA

I was really hoping someone had the Sierra manual.

I have the speer and hornady but neither list a 175gr HPBT.

Sierra usually had a reccomended load for accuracy or velocity for a particular bullet.

thanks

A J Christ

My old Speer manual doesn't list a load for the 175 gr bullet.

Published load for 180 gr bullet and 4350 powder is 68 gr on the low side and 72 gr as max. Would think that this would also work with 175 gr bullets.

gunnut505

According to the Sierra Tech line;
175hpbt, 64.4 H4350 to 71.5, WLR primer, Win case, OAL 3.340.

I have used a load of 75.5 of H 4831 for right around 2950fps, it's light and speedy enough for that powder; much more, and it starts to lose velocity/accuracy.
I also have a load using H414 if you need to experiment with slow powders.

sandwarrior

DENWA,

H1000 is too slow for that light of a bullet in .300 WM. 4350 or 4831 would be a better choice. Use the H1000 when you use bullets over 200 gr.

Anyhow, my Sierra Volume V says starting load of IMR 4350 is 64 grs. never exceed load is 71.4. IMR 4831 is 67.2 and 73.8

JustC

try 74gr RL22 and a 215M primer.