Outofbattery, the Grendel P12 was an improvement over that P10. It goes bang every time, though it's not any more accurate than my friggin' NAA mini revolver, but if the shots are 15 yards, I can hit the torso every time, and the magazine comes apart for cleaning and is removable with a heal/clip release which I like. If I sit on it, the mag won't pop loose.
Actually, my benched 25 yard groups with this gun are in the 6-7" range, which is not really confidence inspiring. Oh, yeah, I know, the average gunfight is at 7 yards. Well, it MIGHT not be at 7 yards. It MIGHT be at 25, you just never know.
I don't carry this thing much, prefer my P11 Kel Tec's caliber and accuracy. But it IS 100 percent reliable with my carry load.
I'm sorry, don't own a Bryco/Jennings/high point. This Grendel is as ugly as I can stomach. ROFL!