robl
.375 Atomic
These were the good ole days!
Posts: 1,415
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Post by robl on May 5, 2013 17:10:20 GMT -5
"As Ken O'Neill says, if you ain't tasted it, you're missing a feast. David Bradshaw"
Absolutely! I swapped on ACP cylinder between 4 different Rugers over a period of years. My latest BH is a dual cylinder version and the ACP will fit my SS vaquero nicely.
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Fowler
.401 Bobcat
Posts: 3,582
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Post by Fowler on May 5, 2013 23:09:20 GMT -5
I get shooting 45 acp in a single action, my USFA 45 colt hits to the sights with a 230gr LFNPB bullet at 850fps, a 45 acp load by any measure. But it is tough to find a load that hits to the sights much less two in two different cartridges. In my USFA I am hoping I can drive a 255gr Keith hard enough to get to hit the same point of aim as the 230 gr load does for a better field load. In theory it should work but we will see as I have not managed to find that magic load yet. If not I have many other 45 colts that I can carry if I need more gun.
Heck a dedicated 45acp or 45 Scholfield (personal taste) in a 3 1/2"-4" Vaquero would be really cool gun I think, of course converting a mid frame Flat top might be even cooler but that's my personal taste.
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Post by tek4260 on May 6, 2013 5:46:46 GMT -5
Traded into a 500ct box of Rim Rock 255gr SWC and tried them out this weekend in the 1911, still set up the same. 5.5gr of Unique gave 878, 891, 877, 876, 878 for 5 shots. Shot great with no leading. They have a shorter nose than the others I have loaded, so they didn't sit as deep. Definitely a "keeper" load for the 1911, and should work well for your convertibles since it is pretty close to a "standard" Colt load.
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Post by Frank V on May 6, 2013 18:03:40 GMT -5
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Post by bagdadjoe on May 15, 2013 11:19:36 GMT -5
Just got an email back from Ruger "the convertible Vaquero was only offered as a distributor special. Since it was never a catalogued item, fitting an ACP cylinder is not a service we offer." ummmmhmmmmmm.....well.
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Shakey
.327 Meteor
Central Arkansas
Posts: 544
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Post by Shakey on May 15, 2013 18:56:54 GMT -5
Dang ! I sure hate to hear that. The gal I talked to told me they had dropped that rule.
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Post by bagdadjoe on May 15, 2013 20:53:49 GMT -5
Maybe I should have called. Wonder if I just got "default answer #5"
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Post by texagun on May 16, 2013 8:06:11 GMT -5
I found one of those in my LGS, brand new, about 2 years ago. Shoots great with both .45 Colt and .45 ACP. The cylinders were a little tight when new so had them reamed out to .4525.
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Post by jimmarch on May 16, 2013 21:19:33 GMT -5
First, does anybody know if a 357Mag cylinder for a NewVaq can be reamed to 45ACP? Because if it can, I'm selling the factory cylinder off my 2005-era NewVaq357. Nothing wrong with it, I just did a full-on conversion to 9mmPara based on a Bowen blank. I doubt there's too many up for sale? Second...having experimented with 9mm and looked at some data on how these work in a revolver with a cylinder like this, I can add some interesting details. My cylinder was reamed in four steps: 1) .325" twist drill in a mill, expanding the Bowen .20cal pilot holes. 2) .345" chucking reamer. 3) Manson 9mm finish chamber reamer, following the .345" pilot. 4) Final throat reamer was a .3555" chucking reamer. This recipe was provided by David Manson after I screwed up and bought a 9mm chamber reamer meant for semi-autos - not revolvers. This set of steps allowed use of the finish reamer I had. The results were superb in every way. Here's the kicker: the section that is .3555" (works best with .356" slugs, shoots .355" jacketed just fine) is almost an inch long. During the period in which the bullet is traveling through this long tight "throat" with no rifling, there is little to no blow-by - the pressure is held very high and the bullet's accelleration is just crazy in this period. It then hits the back of the barrel at a decent rate of speed...and my barrel is a 3.25" section of Douglas Premium rifle barrel in .355" which is why my old cylinder is for sale! S&W has chambered 2" barrel snubbie revolvers in 9mm with a similar "long throat" cylinder, and they get bullet performance on par with a 4" barrel Glock 19. Now, Glocks tend to "shoot fast" due to the polygonal rifling so this is quite a feat on the snub's part. As near as I can tell, that 3/4" or so "tight throat" travel gives the bullet as much of a speed boost as something like 1.5" or more of regular rifled barrel...where the rifling allows some blow-by of gasses. The Ruger "convertible" cylinders in 9mm and 45ACP work the same way as my cylinder. I have not chronoed "Maurice The FrankenRuger" yet but accuracy is so far at least a bit better than stock...plus of course I have magazine feeding with rapid-swapping of (so far) up to 9rd magazines plus gas-powered auto-ejection of empty shells . www.youtube.com/watch?v=F4XtVldNbO4
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Post by bagdadjoe on May 17, 2013 10:10:01 GMT -5
jimmarch....is that a blue cylinder?
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Post by jimmarch on May 17, 2013 16:05:54 GMT -5
The one I want to sell is blue, yeah. Perfect mechanical condition, needs a re-blue (typical wear pattern) plus one "drop-scratch" that will buff out. I'll post pics tomorrow. I can also take some decent measurements as to length I guess. This cylinder is a good one - dates to 2005, the gun's SN is just above 5,500 if I recall right, basically a peak Ruger quality control period. Stock the gun would shoot good factory JHPs into 2" at 25 yards. The one on the gun now (and not ever for sale) is a Bowen chromoly blank still in the white. It shows no sign of rusting so I'm leaving it that way for now. Also it's an oddball because there's no fluting. When I called Bowen they said they were out, I pressed on when some might be available, they said they had Chromoly units done 'cept for the fluting, I said "hey, unfluted would be cool!" and they had no problem shipping it out early . It works great.
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Post by bagdadjoe on May 17, 2013 17:36:57 GMT -5
I just found out Gary Reeder will fit a new cylinder to the gun for the princely sum of $250! Of course shipping not included....but that's probably the way to go.
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Post by blueshawkjmoc on Oct 25, 2013 15:09:19 GMT -5
does anyone, have any experience with using 45 Auto-Rim cartridges, in a Ruger Convertible 45 ACP cylinder?...does this require machining the cylinder?...if so, will thusly converted cylinder, still function correctly with 45 ACP cartridges?...thanks, jo'c
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Post by Encore64 on Oct 25, 2013 15:30:17 GMT -5
It does require turning the rear of the cylinder down for headspacing with the rather thick rim of the 45 AR. Mine still functions perfectly with 45 ACP since it headspaces on the case mouth and that doesn't change.
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Post by bibbyman on Oct 25, 2013 16:02:37 GMT -5
I have a pair of Cattleman 45s I really thought I wanted ACP cylinders for for the same reason many others want them. I have a lot of 45 ACP brass, loaded ammo, and bullets. The ACP case takes a bit less powder to achieve a light to quite adequate load. But adding up the cost of a pair of cylinders and to get them fitted right to the frames, I opted instead to get some Cowboy 45 Special brass. In fact, my order came in today. The advantage is that the case, being basically a 45 ACP case with 45 Colt rim is shot in the 45 Colt cylinder but has the same case capacity as the ACP and thus more efficient at burning small loads of fast powder. Another advantage is that the C45S case head spaces on rim so a heavy roll crimp can be used. Maybe more important when using black powder.
I have a three screw Blackhawk in 45 Colt with extra ACP cylinder that has been stowed away in the safe for 15 years. Maybe I need to get it out?
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