I didn't get to the range this weekend, but what I've seen online indicates a gain of about 100fps when going from the stock 4.6" bbl to the 6" LWD, which should be around a 17-20% gain in KE with my 180gr stuff.
They made them like that. FBI wanted them at the same time they originally (briefly) adopted 10mm pistols, and still have a bunch. They're discontinued though.
They made them like that. FBI wanted them at the same time they originally (briefly) adopted 10mm pistols, and still have a bunch. They're discontinued though.