Ive read a lot of info online, and gathered that federal primers are a tiny bit hotter than other brands, and much easier to set off, as well. I use small pistol match because it is all I could find locally at a fair price (for 9mm) I use NOTHING but winchester/cci for .45acp. I load both .45 and 9mm to the 10% less than max and both are great. Gonna get me a chronograph soon so I can do better comparisons, as well as work up a load for .35 rem that is good in power, safe, and accurate...