OregonJohnny
Member
I am about to start building up .45 ACP loads with Hornady 230-grain FMJ-FP bullets and Hodgdon Longshot powder. I'd like to slowly build up to max data to try and get about 900-925 f/s out of a 5" 1911. But here is the problem -
Hodgdon's published data on their website, using these exact Hornady bullets says: start - 6.3gr - 848 f/s - 14,100CUP; max - 6.8gr - 908 f/s - 17,200CUP. They don't list a barrel length. They are one of the few sources for .45 Super data, which they list as the same start load, with a max of - 7.3gr - 959 f/s - 19,800CUP.
The Hornady 8th edition manual lists the following data with these exact bullets from a 5" barrel: start - 6.1gr - 700 f/s; max - 7.4gr - 900 f/s.
So Hornady's data for max charge in .45ACP goes above what Hodgdon lists as .45 Super! And yet, this max Hornady data only does 900 f/s, whereas the Hodgdon data shows .1 grain less will get you 959 f/s, but listed in .45 Super territory.
To add to my confusion, Hornady does not list pressures in their data. And on top of that, I can find the SAAMI pressure limits for .45ACP in PSI only, but Hodgdon's data is listed in CUP.
I do not want to go over max data, but I do want to build up right to the limit, to get at or slightly above 900 f/s. Please help.
Thanks!
Hodgdon's published data on their website, using these exact Hornady bullets says: start - 6.3gr - 848 f/s - 14,100CUP; max - 6.8gr - 908 f/s - 17,200CUP. They don't list a barrel length. They are one of the few sources for .45 Super data, which they list as the same start load, with a max of - 7.3gr - 959 f/s - 19,800CUP.
The Hornady 8th edition manual lists the following data with these exact bullets from a 5" barrel: start - 6.1gr - 700 f/s; max - 7.4gr - 900 f/s.
So Hornady's data for max charge in .45ACP goes above what Hodgdon lists as .45 Super! And yet, this max Hornady data only does 900 f/s, whereas the Hodgdon data shows .1 grain less will get you 959 f/s, but listed in .45 Super territory.
To add to my confusion, Hornady does not list pressures in their data. And on top of that, I can find the SAAMI pressure limits for .45ACP in PSI only, but Hodgdon's data is listed in CUP.
I do not want to go over max data, but I do want to build up right to the limit, to get at or slightly above 900 f/s. Please help.
Thanks!