Polygonal bores don't like lead....it's something I've heard over and over again. I have personally never tried it because the only pistol I own that has one is a $2100 pistol and I prefer not to have to replace a barrel $200+ if it leads up and creates a pressure spike during a practice session.
Though it is chrome lined, which I would imagine makes cleaning lead out a dream...
If someone can prove this wrong I would seriously appreciate it. I just don't want to be the guy who tries to prove it wrong and ends up proving it right.
__________________
NM M1A, HK Mk 23, Benelli M4, Ar-15 Lower,
CZ 2075 RAMI (P) 9mm, Barrett MRAD .338LM
Looking for a new blog dealing with firearms and reloading, check out
http://theheadstamp.com/