.41 mag data

[calsite]

I've got some IMR 4227 I's like to use up, does anyone have any data for this powder underneath a 250 gr. cast boolit? I would that 13.0 grains would be a safe place to start, I've used as much as 16. grs. in my .44 special/240 gr. cast and trust me that was special, though I wouldn't recommend it unless your shooting a Ruger or Smith N-Frame.

Thanks Matt

[felix]

18 grains. ... felix

[Dark Helmet]

Try this http://data.hodgdon.com/cartridge_load.asp:Fire:

[Redleg99]

Calsite:

Ditto what Felix said – That recipe has worked well for me.

18 grns of 4227 under a 250 grn boolit is well within safe limits, according to the data I have (courtesy of Hogdon and Lyman).