powder for Rem 7mm mag ?????


PDA






buzz1965
April 15, 2007, 09:58 PM
I have a BAR in 7mm mag and was wondering if H4831sc would have the correct burn rate? I use it in several of my other rifles that are bolt guns. I have been told the burn rate is very important when reloading for autos. I plan to shoot 160 grainers. i hope someone out there can provide a little help.

If you enjoyed reading about "powder for Rem 7mm mag ?????" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
Grumulkin
April 15, 2007, 10:19 PM
The slowest powders I would use are H4895 and Varget. My rationale is that the Hornady manual lists those powders as suitable in the M1 Garand. I know H414 is too slow for the Garand and H4831SC is slower yet.

It is possible that a BAR is more tolerant of slow powders than the Garand but I don't know that for sure.

dakotasin
April 15, 2007, 10:29 PM
best powders for the 7 rem mag that i have found are h-4831, and rl-22. be careful of varget in the 7 rem mag - that is a massive case and a pretty fast powder.

CZ57
April 15, 2007, 10:41 PM
Also two of the most recommended, when you consider that RL-22 is made by Norma for Alliant and is very close or identical to Norma MRP. 4831 will build max pressure with 160 grain bullets.;)

Dark Helmet
April 16, 2007, 10:34 PM
don't forget IMR 7828

bigcim
April 16, 2007, 10:43 PM
imr 4350

CZ57
April 16, 2007, 11:00 PM
buzz: why not load up a few testers with the 4831 SC? Single feed the first few and if they function, try 3 in the mag. If they don't work, bigcim gave you one that will.;)

buzz1965
April 17, 2007, 05:38 PM
I just had a chance to check the replies to my question. I greatly thank you all for the answers I received. The reason I was wanting to go with 160 grnrs is that I sighted in with 160's. The funny thing is the Browning doesn't like Winchester failsafe, but loves Federal classic 160's. I think it may have something to do with the moly coating. again thank you all:)

LeonCarr
April 17, 2007, 07:04 PM
RL-22

Just my .02,
LeonCarr

If you enjoyed reading about "powder for Rem 7mm mag ?????" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!