I recently purchased 5000 LRM factory seconds primers from American Reloading since they were cheap. The description was vague, only stating that they were magnum primers and that they had a 0.1% chance of not firing and to not use in cold weather. Upon further research, they are from the new White River Energetics company here in the US.
Initial observations, they all seem to be uniform but the only thing off about them is that they are a little too tall. In most of my brass they sit just at flush. Other than that, they work.
To test the reliability in cold weather, I loaded 10 rounds of 7mm STW with 85.0gr of WC872 and a 160gr Speer.
Big case:
Slow burning powder:
Temperature: 33°
All rounds fired just fine, with the same accuracy I get with normal WLR primers and this powder.
I forgot the proper rear bag attachment for my rest, so my setup looks awkward.
Initial observations, they all seem to be uniform but the only thing off about them is that they are a little too tall. In most of my brass they sit just at flush. Other than that, they work.
To test the reliability in cold weather, I loaded 10 rounds of 7mm STW with 85.0gr of WC872 and a 160gr Speer.
Big case:
Slow burning powder:
Temperature: 33°
All rounds fired just fine, with the same accuracy I get with normal WLR primers and this powder.
I forgot the proper rear bag attachment for my rest, so my setup looks awkward.