Ruger 4 5/8 3 screw w/45 ACP Cyl
- Thread starter Cherokee
- Start date
Eutectic
Active Member
The .45 Colt is one of SAAMI's dimensional mistakes they need to fix! The chambers cut by SAAMI dimensions are WAY too big! It bothered me so bad I took a RCBS carbide sizer and opened it up to size the rear of the .45 Colt case to a couple thousands less than fired brass. Now that die won't size the neck enough! So I carbide size twice with the second die used almost like a neck sizer...... Yeah more work.... But my Blackhawk says a big "Thank you!" every time I shoot it. So it's capable to hang with the .45 Auto only hindered by dimensional mistakes.
If the .45 Auto (or Auto Rim) have correct cylinder throat dimensions both for bullet and groove diameter they will shoot with the long throat. And I mean really shoot by the way!
Pete
Bret4207
At the casting bench in the sky. RIP Bret.
I have a 45ACP/Colt BH 4 5/8". I've never had the Colt cylinder in it! The ACP cylinder shoots as tight as I can hold with good ammo. Someday I hope to find a load both it and my 1917 Smith like that involves the 45 BD bullet. So far I have a load the BH likes and load the Smiff likes, but they don't both like the load the other likes at all. The BHhas loved the BD bullet with any sane amount of Unique since day one. The Smiff likes a 200 gr H+G and BE that I don't own a mould for. It hasn't played well with the BD so far, but did do well with the 452423 (I think that's the one). I should be happy but I really like the BD design and I have 2 6 bangers for it.
Ian
Notorious member
Yes, "BD" was/is a castboolits member who desiged the WFN for the .45 automatic. I think Accurate catalogs an example, and there were Lee group buys run before that, many years ago.
BD often suggeted sizing .451" for the .45 auto, for which he received much ridicule from the establishment, however those of us who scatched our chins and tried it found that doing so cured our pesky leading issues. It seems a sloppy chamber, small throat entrance, and too-large bullet causes shaving and lumpy, persistent lead deposits in the first inch of the barrel. I now powder-coat and size all of my .45 auto bullets to .4515" and all of my guns like that, including 1911s witj all sorts of throat sizes and angles, carbines, M&P
autos, revolvers (SAA and Smiff 25), and chamber inserts.
BD often suggeted sizing .451" for the .45 auto, for which he received much ridicule from the establishment, however those of us who scatched our chins and tried it found that doing so cured our pesky leading issues. It seems a sloppy chamber, small throat entrance, and too-large bullet causes shaving and lumpy, persistent lead deposits in the first inch of the barrel. I now powder-coat and size all of my .45 auto bullets to .4515" and all of my guns like that, including 1911s witj all sorts of throat sizes and angles, carbines, M&P
autos, revolvers (SAA and Smiff 25), and chamber inserts.
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Creeker
Well-Known Member
A little late to the game here but my cylinder had a little problem. If I simply removed the bell after seating the bullet [.453"] a couple of chambers wouldn't fully seat. I had to apply a little crimp. And even then I have one chamber that a loaded round won't fully seat at times. The case will rub the recoil shield slightly.
My ACP had .448" throats & still shot way under 2" at 25 yards but I was getting lead in the barrel. I sent the cylinder to Fermin & he opened the throats to .4525" but had to purchase a different pilot in order to do it. He said it was the worse one he'd seen. I would call him & see if he can fix your cylinder as he may have a cylinder reamer. If you choose to I can PM his number.