Not sure if I'm posting this in the right spot or not but, here goes... I'm going to start shooting IDPA matches and will be using my EDC gear; bone stock G27 in a Glock sport/combat holster. Upon reading the IDPA rule book, the ammunition rules talk about the SSP class needing to meet an ammunition power floor of 125,000 (bullet weight x muzzle velocity). It goes on to recommend chrono'ing three rounds at 10 ft to ensure the ammo meets the required PF. I don't have a chrono but figured I could just rely on the published factory load specs(?). For example, Blazer Brass 180gr would be 180 x 985 = 177300. No barrel length is listed for those specs but I have to assume the short G27 barrel wouldn't deviate enough to make much of a difference. Based on this, I'm going to assume that most factory FMJ is going to meet the PF requirement. For those that do shoot IDPA with a G27 and use factory ammo, what are you using? (I'd like to use my carry ammo but don't want to go broke shooting matches) Wanna kill these ads? We can help!