04-24-2020, 07:26 PM
I have converted some Lapua 7.62x39 to 6.5 Grendel as an experiment, 20 rounds. At first I though it was not worth it as is decreased case capacity, but reviewing my results, the velocity gain from going to a large primer (Fed 210) made up or exceeded for the loss of powder in the case.
This test was in my Ruger (RAP). Some day I will revisit this test to confirm.
In the early posts on the forum the reports were that the primer pockets loosened up after 3x or so reloads so when actual factory Grendel bass was available everyone pretty much abandoned reforming.
As an interesting relating aside, on PrecisionRifleBlog what the pro's use in 6mm Dasher by 5 to 1 they used CCI 450 primers in their loads, so that's another validation for them in the Grendel.
This test was in my Ruger (RAP). Some day I will revisit this test to confirm.
In the early posts on the forum the reports were that the primer pockets loosened up after 3x or so reloads so when actual factory Grendel bass was available everyone pretty much abandoned reforming.
As an interesting relating aside, on PrecisionRifleBlog what the pro's use in 6mm Dasher by 5 to 1 they used CCI 450 primers in their loads, so that's another validation for them in the Grendel.