Ultra slow powder in .243?

[flyinbrian]

I've been getting very good results using 46 grains of H-1000 behind the 105 Amax in my 26" Savage varmint barrel. I saw Wideners has the IMR 5010 surplus powder for 32 bucks for 8 lbs.

Since the thought of 4 buck-a-pound powder has me salivating, I'm very tempted to buy a keg to test it out, but as I have very limited reloading experienc am wondering if it's possible to run too slow of a powder?

Thanks in advance for your time.

 

[reedmosser]

Believe me don't shoot 5010 in your 243 win. Even it it does shoot just think of all that unburnt powder going through your barrel like a sand blaster. 5010 is a very slow burning powder better suited to over bore mags and ultra heavy bullets. Its works great in 338-378 with 300's. I shot it in two 7 wsm barrels with 180 bergers, excellent accuracy to start with a 300 rounds later those barrels were junk. Throats like new but bores rougher than a cob. My earlier on learning experience cost me two great barrels please don't shoot it in your 243. maybe try some ramshot magnum IMR 7828 H 1000. Reed

 

[flyinbrian]

Believe me don't shoot 5010 in your 243 win. Even it it does shoot just think of all that unburnt powder going through your barrel like a sand blaster. 5010 is a very slow burning powder better suited to over bore mags and ultra heavy bullets. Its works great in 338-378 with 300's. I shot it in two 7 wsm barrels with 180 bergers, excellent accuracy to start with a 300 rounds later those barrels were junk. Throats like new but bores rougher than a cob. My earlier on learning experience cost me two great barrels please don't shoot it in your 243. maybe try some ramshot magnum IMR 7828 H 1000. Reed

Reed,

Thanks for your first hand experience. I'll take your advice and stick to the H-1000.

I appreciate it.

Brian