Thread: 7mm PRC

Originally Posted by 25/08 IMP

Re did a ladder the other day no pressure ]

Looking at your ladder velocities, which are quite variable with each step (some lower fps than previous step) it would pay to try a different primer. Otherwise you aren't going to get consistent velocity SD.
I always shoot a mid charge weight of 4-5 shots first to test the viability for the load combination. This will show if it's worth continuing with shooting the ladder.

What primer are you using?

Originally Posted by Roarless20

Looking at your ladder velocities, which are quite variable with each step (some lower fps than previous step) it would pay to try a different primer. Otherwise you aren't going to get consistent velocity SD.
I always shoot a mid charge weight of 4-5 shots first to test the viability for the load combination. This will show if it's worth continuing with shooting the ladder.

What primer are you using?

These were shot with Fiocchi LR I do have federal 215 but when I did a test awhile ago the Fiocchi gave better SD over the 215 for a 5 shot group.
The ladder was just to give me an indication of pressure and looking for the flat spots I'm now going to load 5 of each 60, 60.2,60.4,60.6 and 60.8 and shoot a group of each.

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