The link works for me on both laptop and Android phone.

yeah i got it to work, just got impatient. my bad

Does anybody know what the throats would be on a .45 ACP cylinder?

The reason I ask is because my 3rd Gen Colt's regular .45 Colt cylinder has .455 - .456" diameter throats.  If the .45 ACP has .451 - .452" throats I bet the Cowboy Special could be a tack driver.

Lonesome and the rest,
I have been cooling my heels and perusing files on my computer and posts from over a decade on this site, I found my information on the Gen 1 Colt I have.




I don't remember the topic anymore it might have been a discussion about Conversion Cylinder dimensions, but I was measuring bores and cylinders.  That cylinder will pass a Ø.455+ gauge pin but not a .456.  The grove diameter is definitely Ø.454 as measured on those two balls, the land diameter would accept a Ø.442- pin all of the way through, but the Ø.442+ pin was tight and stuck after about 1 inch.

That's my revolver, it is a "family gun".  It was made in 1896 and is not marked as a Smokeless "approved" frame.  1896 was the "transition" year. However, it does have the push button cylinder pin release.  I have heard arguments and read a couple of books considered to be the authority on SSAs that the buttons started to replace the screws as early as 1892 and was phased in as Colt's had their frames already set up one way or another.

So, I guess my point is that the older Colts used to be relatively tight in the throats considering they used Ø.454 bullets.  It seems the modern revolvers S&W and Colt's actually often have looser throats compared to the original revolver it was chambered in when you considering the bullets were Ø.454 back then.    A Ø.455 throat to a Ø.454 bore is about as perfect as you could ask for.

~Mako

:)Hey !! 

So how is it then, when we swage a Round Ball down in the Chamber, well sub bore diameter, the stupid thing will group just fine.  Shooting just as accurate as most suppository shooters.  Atz Oxymoron.  Really.  So, why don't we just skip ALL of this super technical fecal matter and just load Roun Ball in our Suppository Shooters???

Harrumpff

Spoken like a true Moss Back... a Curmudgeon extraordinaire... Our Coffin Maker.

When you only get a contact patch like this on these two Ø.454 (or Ø.457, I can't remember now)  Balls driven down the barrel of a a Gen 1 SAA  you can get away with almost anything.  I'll look up the diameters when I get home.  That was 12 or 13 years ago.



The only man I know who uses iron Banded wheels on his truck instead of a pneumatic tires.

And you are correct, there are a few variables.  The Throat probably being number one and the groove diameter being number two in importance.

"There's a great future in plastics. Think about it. Will you think about it?"

~Mako

Gary did an excellent relining job with my 51 barrel, the bobbed 61 barrel is still OEM bore. and I used Heeled bullets 

It's Home, and just completed the Rebate incentive    $50 bucks is $50 

You are present for the case opening, though not the virgin opening (did that inspection was at the LGS first)
The Altamont supplied grip fit my hand quite well, however I may get these Altamont's anyway.
I have a remaining Xmas Amazon gift card, so they would be in effect free 

Next is to load and shoot it some... then CCW