azrocks
Member
- Joined
- Jun 28, 2016
- Messages
- 659
My very first attempt ever at reloading was using Speer's data, as their 124grain TMJ-RN bullets were the exact same length as the 124g Armscorp FMJ-RN bullets I had on hand. Their starting load using Power Pistol with this bullet, at 1.135" OAL, is 5.6 grains. I duplicated this load, with the only exceptions being my OAL very slightly increased to 1.140 OAL (average), and using Winchester primers instead of CCI.
Compared to Federal Champion 124g rounds, which are supposed to run at ~1090 fps, these rounds had significantly more recoil, even though Speer shows 1033 fps for this starting load. (Note: I checked for setback repeatedly - using the 'press test' as well as chambering the rounds. This was not an issue).
Then I started looking through data from other manufacturers, and most everyone else is showing ~5.7 grains as being the max load with similar bullets!
Not having a chrono I'm kind of limited, but is this a known issue? Is there any way the primer alone could account for this? Or am I missing something?
Compared to Federal Champion 124g rounds, which are supposed to run at ~1090 fps, these rounds had significantly more recoil, even though Speer shows 1033 fps for this starting load. (Note: I checked for setback repeatedly - using the 'press test' as well as chambering the rounds. This was not an issue).
Then I started looking through data from other manufacturers, and most everyone else is showing ~5.7 grains as being the max load with similar bullets!
Not having a chrono I'm kind of limited, but is this a known issue? Is there any way the primer alone could account for this? Or am I missing something?