there are just shy of 7,000 grains in 1 lb. divide that by the load you intend for your 45 acp, there are charts that help depending on weight of bullet and other factors to determine correct charge, then you will know aprox how many you can do.
No matter how much you shoot, 8 pounds lasts eight times longer than a 1-pound bottle.
I buy one-pound canisters for testing new loads, then go straight to 8 lb keg when I find the powders I like. The keg usually lasts a half year or a year, depending upon how much I shoot. And 8 pounds cost the same as 5 or 6 individual pounds.
I guess this can be read two ways? how long does you powder last? Do you mean by using It, or not using It??? Are you talking shelf life or user life??? If you are talking about shelf life I have used powder that was more than 20 years old and It was kept very well, clean and dry, how clean? In the cans it came In and how dry? I have kept my powder In a damp but not wet basement with dry packd around It without any problems. Now as far as how long It will last by using It read above!!!
Semper Fi all. Hank D.
Like NickA, once I find a powder that works good for my purposes, I buy it in 8# jugs. Except for Power Pistol which has 4# as the largest container size, which I don't understand.
To the original question, how long your powder lasts is directly dependent on how many rounds you load. There's 7000 grains per pound, so if you're loading 5.0 grains per round, you'll get 1400 rounds per pound. If you shoot 1400 rounds per month, a pound of that powder will last a month. If you shoot 1400 rounds a year, a pound will last a year.
thanks, thats what i was really wondering is a general rule of thumb, most people i have talked to try to stretch the powder and will load on the low side, so i was just kind of curious specially cuz i will be buying 1lb bottles till i get the hang of this and find what i like.
IMHO, trying to save money by reducing powder charges isn't particularly cost effective. Figure 16.25 for 1 lb of Win 748. That's 0.00232 per gr. So you're looking at saving less than 0.25 per hundred rounds if you download by 1 gr. Granted, that's a little over 2.25 per thousand, but load performance is higher on the list of desired results to me than saving a dollar or two per 1000 rounds.
That is not a good combination. If you bust your gun, you will be sorry. If you bust a friend's gun, he will no longer be a friend and his lawyer will make you VERY sorry. Do not learn on other people's stuff. I don't load for other people and I started in 1970.