No issues with the factory barrel. That is why I’m inclined to stick with the factory barrel unless someone has a compelling reason to replace it that I’ve not considered.
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The gun got back from Wilson yesterday. Sadly, it will likely go back. It was testfired as follows:
The ammo was 200 rounds of Federal 147 grain AE and 50 rounds of 147 grain HST.
Initially, I used 2 Wilson ETMs 500-9B. These two mags could not make it past 6-8 rounds without a failure to feed where a round was pinned between the barrel rim and breechface with the round below it stovepiping in the magazine tube. I only fired 30 rounds of the AE between these 2 magazines and abandoned further testing with them due to the frequency of the malfunctions.
I also had 2 Vickers ETM mags which were much better but still not up to standards. These mags only had 2 FTFs (without the stovepiping) over the remaining 170 rounds of AE and 1 FTF with the 50 rounds of HST.
For what it’s worth, the gun passed a 16-round extractor test.
Maybe try experimenting with other mag flavors prior to sending it back. This is not the first I've heard of 9mm Colts disliking Wilson mags.
I have considered that. However, I have a Wilson CQB Elite (no rail) being built and my plan was to have both of these guns designed around the same parts and especially the magazines - hence my decision to send it to Wilson. That is to say, Wilson has a reputation for cracking the code to a ultra-reliable 9mm 1911 and much of that is attributed to their magazines being critical to the recipe. I’d MUCH rather not have these two guns running different mags. So much so that I’m more than willing to part ways with it to get another railed CQB Elite...provide the one sans rail actually lives up to its reputation.
Makes sense to me.
Too bad you can’t burn it down and collect insurance money on that thing.
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Here are two pictures of the FTF from different angles:
Attachment 30041
Attachment 30042
Of note, the round is pinned between the lower parts of the barrel and breechface. The rim as yet to encounter the extractor, so I do not think that it’s an issue of extractor tension.
It is also easily cleared by slingshotting the slide.
I have several cases of the AE 147 grain, and it's among my favorite practice ammunition, but I'm not certain it is the best round for a 9mm 1911, even a Wilson Combat. I'm not sure if the flat nose bullet profile and overall length makes it more susceptible to that kind of hang up. I'd consider giving some 115 or 124 grain ammunition with a more traditional round nose a try and see if the problems continue.
I am sorry to report that my Colt 1991A1, tuned by a gunsmith less renowned than Wilson, is very picky as to ammo and magazines.
Mine gets only rather pointed FMJ or plated from Tripp or CMC XP (now extinct since Wilson takeover of CMC) magazines. It is a very fine IDPA ESP but lacking confidence in hollowpoints, nothing I would use for duty or defense.
Blunt roundnose, flatpoint, truncated cone, and most JHP stub out against the barrel ramp as you show. Ogival hollowpoints like 9BP and plain vanilla RP will SEEM to do ok, but I have not shot enough to be confident. And why bother? I have a load that it does fine with at matches, I can use Something Else for serious social purposes.
My Springfields with integral ramp barrel are more forgiving, although it still took some work to convert the integral ramps into feed ramps. I assume Wilson knows how.
This would be a very expensive addition to your Colt.
I think I would try some different magazines. The Metalform 9x9 "Front Ramp" works well in my guns, although reviews are spotty. The Metalform 9x.38 Super with round follower is a surprisingly good 9mm magazine.
Different ammo is worth testing. As above, I just found something that works in my Colt and have stuck with it.