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Rifles, Reloading, Optics, Equipment
Reloading
Powders for 180 gr SST in 300 win mag
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<blockquote data-quote="Lefty7mmstw" data-source="post: 1051133" data-attributes="member: 48043"><p>they will both work... no powder is 100% temp. insensitive. Some will do very well when they are happy, but will fall off the wagon if they aren't. I've had h4895 (a supposed "extreme" powder) toss over 100 fps differences from the same box of ammo depending on time of year.... others have seen the powder do 10-20 fps when it is more happy... rl powders will typically toss 50 to 80 fps differences between summer and winter. Primer, rifle, and shooter can play a part also in "temp. stability" so do not hang your hat on the powder too much. I really don't care myself. I care about accuracy at all times ( no summer and winter loads) and if the vel's a bit slower I'll accommodate that.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 1051133, member: 48043"] they will both work... no powder is 100% temp. insensitive. Some will do very well when they are happy, but will fall off the wagon if they aren't. I've had h4895 (a supposed "extreme" powder) toss over 100 fps differences from the same box of ammo depending on time of year.... others have seen the powder do 10-20 fps when it is more happy... rl powders will typically toss 50 to 80 fps differences between summer and winter. Primer, rifle, and shooter can play a part also in "temp. stability" so do not hang your hat on the powder too much. I really don't care myself. I care about accuracy at all times ( no summer and winter loads) and if the vel's a bit slower I'll accommodate that. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Powders for 180 gr SST in 300 win mag
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