At this point in time I do not have Benchmark in my powder cabinet. From what I can read it looks much less temperature sensitive than either CFE 223 or IMR 4895 and probably would be worthwhile to see how it performs.

Thank you. Sorry about the huge pictures. I selected document small from Office Picture Manager - should have selected web small. There was a lot of discussion about primers for this cartridge and decided it would be nice to test the BR4 and publish the results.

I was at my local supply shop and came across a Ruger 77 Mark II in 204 Ruger caliber. The outside of the rifle looked just about brand new and the internals looked lightly used. Bore was shinny and clean. The dealer indicated the rifle had been professionally glass bedded and the trigger had been r...