16 posts
Joined November 2009

Reloading 9mm Luger

Is it ok to use the same amount of powder and follow all other measurements while reloading 9mm Luger, 115 gr weight when using lead or hard cast alloy bullets? Thank you.
64 posts
Joined June 2016

RE: Reloading 9mm Luger

It is always wise to reduce the powder charge when making a component change to an established load that you have been using. Try to find load data for the components you have. For cast bullets, the Lyman manuals are very good. But many loading manuals offer loads for cast bullets.

Cast bullets are usually oversized to seal in the rifling grooves. If you change the alloy to a hard cast, it is possible to spike the pressure.

Yeah, that's the standard answer. Consider, no one knows your level of reloading experience. Just as no one knows mine. That's not to say that a more experienced reloader will not reduce a charge. Almost certainly they will, depending upon what they are using as a load recipe to begin with.

Loading too light can be just as dangerous as not reducing a charge when changing a component. Certain powders need to remain within a range depending upon what components are used. I will study various manuals and research online when working up a load.