Red Barron - I did not get to test the 54r ammo today. I did find the load in 8mm Mauser. In a Vz 24/47 with an excellent bore I produced a 3/4 inch group (50yds) using 24.3gr and 150gr FMJ-hp projectiles in brass formed from 30-06 RP. In load ranges within a 1.2 of the load it still produced 1 to 1.25 inch groups at 50yds. It performed better than my favorite reduced load of 4895 in this rifle. Honestly, I believe it may also be a touch cleaner burning on the low end. I have not experienced any issues on sealing up either. The 7.62x54r is usually where I experience this problem the most with reduced loads.