OK, Again thank you all for your sage advice. I gratefully accept it all.To throw a bit more mud into the mix...I have loaded and shot near 1,000 rds. of M1 Carbine with H110/296. In working up a load for accuracy, I started with a down load of 1750 fps using std rifle primers. With no repercussions. BTW, my most accurate load was @ 1825 to 1850 fps at 50 yards. Which begs the question, are small rifle primers hotter than std. pistol primers? Cheers!