45acp different primer sizes?

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Lever Action Gypsy
Lever Action Gypsy

I found my reloads with the large and small primed cases using the same charges, components,load technique ect, the small primer had lower recoil, so assume lower velocity but no chrono to back up factually. Starline brass does have an article and found that to be the case as well. It actually makes alot of sense if you think about it. – https://www.starlinebrass.com/articles/Small-Primer-vs-Large-Primer/

noshot
noshot

I sort, then paint the head of the case. no difference in ignition.

Buchanan Precision
Buchanan Precision

Jesse: I see you found out about the Small Primer cases. Most are head stamped Winchester NT or “Non Toxic.” It looks like that is what you are showing.. The biggest problem with these is even though you sort before loading it is hard to discern between large and small hole by just glancing . Net result here is that you end up trying to stuff a large primer into a small case. This usually ruins the primer but doesn’t hurt the case, so what you do is collect them until you have a bunch and then swap you primer… Read more »