I think, in a 1911, Brob is saying ported, and thinking comp.
Sprringfield is the only one I know selling, or used to sell a 3 1/2 inch,
'V-10', IIRC, with a (Mag Na) ported barrel, and slide.
The basic reason for accurizing is to reduce group size, usually for target shooting, not to 'hot rod' the pistol with heavy loads.
The .45acp is no big horsepower, hard recoiling load, in a gun as small as the old Detonics 'Combat Master', and a pussycat in a 5" gun!
And, porting will often to nearly always 'strip' metal from the bullet, as it passes over th port in the barrel, undoing much of the accuracy the other work added, by unbalancing the bullet, rotationally.
Find a range with a solid bench or two, and fire a few targets, for group size, at 25 and 50 yds; "wnist rest" your two hands over a sandbag, and do not let the pistol contact the bag in any way. Fire the first round in the mag into the dirt of the berm, then 5 for group. (The first is often 'out of the group', due to the difference in the way it was loaded into the chamber, compared to the rest)
If that range, or a local gunsmith, has a Ransom Rest, you may try to borrow it, and fire a few groups that way, as well.
The 'wrist rested' groups will often be the tighter, of the two, assuming, since you are shootong for group size, not score, you use a constant, identical, point of aim.
If the pistol will shoot 2", off the bags, at 25, I'd spend my money on ammo, not parts, and some practice tme, with a sight change being the only exception, to center the group, on the bull.
I suspect it will.
Don't start no s**t and there won't be none, Terry
Last edited by stash247; 02-15-2007 at 10:22 PM..