Slow powder in 22-250

chindits

WKR
Joined
Feb 25, 2013
Messages
788
Location
Westslope, CO
So I have some magnum powders I hardly use anymore: Staball hd, V560, h4831

When I finish up the last of my h380 what would I lose besides velocity if I just switched to the slow powders in an 22-250 under a 55vmax.

It’s a slow twist tikka that shoots 55gr bullets okay and keyholes 69 gr bullets so it’s not ever going to shoot heavies without another barrel. It’s just a matter of burning the powders I have. I won’t change the barrel until it’s shot out. I’m a cheap sob.
 

cq0302

FNG
Joined
Sep 24, 2017
Messages
24
Location
29 palms, ca
So I have some magnum powders I hardly use anymore: Staball hd, V560, h4831

When I finish up the last of my h380 what would I lose besides velocity if I just switched to the slow powders in an 22-250 under a 55vmax.

It’s a slow twist tikka that shoots 55gr bullets okay and keyholes 69 gr bullets so it’s not ever going to shoot heavies without another barrel. It’s just a matter of burning the powders I have. I won’t change the barrel until it’s shot out. I’m a cheap sob.
Sierra lists many slow burning powders for the 22-250 but primarily for heavies, the magnum powder works well for heavy bullets but you’ll likely end up with plumb full case and lower velocity before you hit pressure on something like 560, a more moderate powder like 4350, rl 16, 17 is better suited to you desires
 
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