sonick808
Member
Greetings All,
Due to the powders becoming hard to get, I'm going to be using 4 pounds of IMR SR 4756 for my .40S&W and .45ACP reloads for the next, well, 4 pounds at least. Some say this is a great application for this powder, some don't.
Prejudices aside, liabilities aside and all that disclaimer stuff, I was wondering if some experienced folks could sanity check this .40S&W recipe:
I am using Rainier 165gr RNFP plated bullets. There is no direct data for these for SR4756.
Based on hodgdon loading data for .40S&W, I used the bullet lengths (not oal), the weights and lo-hi charges for each to arrive at an average of 7.7-8.2gr for a true copper jacketed bullet with a length of 13.92mm (my bullet length)
Now, being plated bullets, I subtracted 10% as suggested by Rainier, to arrive at a lo-hi range of 7.0-7.4 with OAL of 1.125"
So, I'm requesting a sanity check on this final recipe as my first lower pressure attempt:
Rainier 165gr. Plated RNFP bullet (13.92mm length)
IMR SR 4756 7.1gr.
CCI #500 small pistol primer
Light Lee factory crimp to prevent change of OAL during handling. Nothing major
Cartridge OAL 1.125
Sane ? Safe ? These are just opinions, not gospel, not liable, nothing of the sort. Just looking for anything egregious.
Sorry so long; I am borderline paranoid when it comes to a new load, especially when i have to invent it based on other bullet data.
Thanks!
Due to the powders becoming hard to get, I'm going to be using 4 pounds of IMR SR 4756 for my .40S&W and .45ACP reloads for the next, well, 4 pounds at least. Some say this is a great application for this powder, some don't.
Prejudices aside, liabilities aside and all that disclaimer stuff, I was wondering if some experienced folks could sanity check this .40S&W recipe:
I am using Rainier 165gr RNFP plated bullets. There is no direct data for these for SR4756.
Based on hodgdon loading data for .40S&W, I used the bullet lengths (not oal), the weights and lo-hi charges for each to arrive at an average of 7.7-8.2gr for a true copper jacketed bullet with a length of 13.92mm (my bullet length)
Now, being plated bullets, I subtracted 10% as suggested by Rainier, to arrive at a lo-hi range of 7.0-7.4 with OAL of 1.125"
So, I'm requesting a sanity check on this final recipe as my first lower pressure attempt:
Rainier 165gr. Plated RNFP bullet (13.92mm length)
IMR SR 4756 7.1gr.
CCI #500 small pistol primer
Light Lee factory crimp to prevent change of OAL during handling. Nothing major
Cartridge OAL 1.125
Sane ? Safe ? These are just opinions, not gospel, not liable, nothing of the sort. Just looking for anything egregious.
Sorry so long; I am borderline paranoid when it comes to a new load, especially when i have to invent it based on other bullet data.
Thanks!
