Took a trip down to the range today after work to try out the MP357-125-RN mold: in my AR9 SBR and my pistols.
https://www.mp-molds.com/product/mp-...av-bevel-base/
Short version is that my AR9 really liked this boolit over 4.0grs of Unique @ 1.100". It was accurate, fairly clear, and recoil seemed pretty standard. The pistols on the other hand didn’t shoot as nicely. No feeding issues or anything. I just wasn’t able to accurately shoot this load in my gun. I’m not sure if the problem was me, or the load. But I tend to think it was me…I never shoot great after working…
That said, there is definitely room to work up, the manual actually starts at 4.5gr of Unique for this weight. But 4.0gr seemed like a fine load for the AR9. Which is why I purchased this mold to begin with. Now, to work up something with its 147gr brother, the MP357-147-RN…