I got a good deal on a keg of Promo recently, so I'm venturing into the bulk powder arena, and have a few questions.
For starters, I have been reloading for several years now, all for handguns and almost exclusively for .45, using mostly Bullseye and some Red Dot. I shoot an average of 1k rounds a month, so my reloading is geared toward production, not precision.
I know that Promo is loaded using Red Dot data by weight, and I have plenty of historical data for my guns using Red Dot. My normal load using Red Dot is 4.8-5.0 gr behind a 230gr RNL bullet, so I want to start at around 4.5 gr of Promo and work up. My question is, since Promo is a flake powder, will all of my charges have to be individually weighed? I found a powder measure setting that should throw 4.5 gr of Promo, and threw 50 charges. They all came in between 4.4 and 4.8 gr, with the vast majority being 4.6 or 4.7.
The way I see it, there are two ways to look at this. One is Promo is just not going to throw consistent charges so I'll have to weigh every charge. The other is don't be overly concerned with it, as all the charges are still well within normal limits.
Am I overthinking this?
For starters, I have been reloading for several years now, all for handguns and almost exclusively for .45, using mostly Bullseye and some Red Dot. I shoot an average of 1k rounds a month, so my reloading is geared toward production, not precision.
I know that Promo is loaded using Red Dot data by weight, and I have plenty of historical data for my guns using Red Dot. My normal load using Red Dot is 4.8-5.0 gr behind a 230gr RNL bullet, so I want to start at around 4.5 gr of Promo and work up. My question is, since Promo is a flake powder, will all of my charges have to be individually weighed? I found a powder measure setting that should throw 4.5 gr of Promo, and threw 50 charges. They all came in between 4.4 and 4.8 gr, with the vast majority being 4.6 or 4.7.
The way I see it, there are two ways to look at this. One is Promo is just not going to throw consistent charges so I'll have to weigh every charge. The other is don't be overly concerned with it, as all the charges are still well within normal limits.
Am I overthinking this?
Last edited:
Tim