Power Pistol is an amazing powder. Such high velocity with low chamber pressures. It\’s like magic.

I load the RMR hollow point 115 gr JHP (MPR NUKE) at 6.6gr and 1.125\” COAL. They are really powerful, but according to QuickLoad calculations still have a manageable pressure. It seems like Power Pistol burns slower than other powders (like Titegroup) to give a longer push duration from the slowly increasing pressure. Hence the big muzzle flash because all of the powder is not burned as the bullet exits the barrel. These rounds shoot incredible well out of my Staccato P, which seems to like a powerful load to cycle reliably.

I use a lighter load for my other guns. For plinking I use 3.8gr of Titegroup (which seems to have an almost instantaneous pressure peak) with the RMR 124gr FMJ Truncated Cone Flat Point MatchWinner, but at a COAL of 1.075 to get higher velocity out of a lower cost ammo. 1.075\” COAL allows for flawless load in some pistols like a CZ which seem to need a shorter cartridge, based on bullet shape.

As a note of caution based on my experience. Watch your COAL. The beauty of 9mm is your COAL can be varied a lot based on the bullet shape, your load, your gun requirements, and the resultant chamber pressure. But it can significantly change your chamber pressure. Seems like COAL is almost as important to watch as the actual amount of powder. Most other pistol ammo COAL has little wiggle room for a variety of reasons.