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Post by x101airborne on Mar 16, 2023 6:31:35 GMT -5
I should probably call a good friend about this but hate to waste his time with stupid questions, so real quick, can a Smith and Wesson Titanium cylinder have the throats opened up? Mine are a shade too tight for cast, not real bad but definitely tight. This is for a 325PD. Lots of throat length so I was thinking of loading cast in AR cases seated long and upping the powder charge slightly. I am not trying to make a magnum out of it, more like 45 ACP+P with cast.
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Post by bradshaw on Mar 16, 2023 7:20:52 GMT -5
I should probably call a good friend about this but hate to waste his time with stupid questions, so real quick, can a Smith and Wesson Titanium cylinder have the throats opened up? Mine are a shade too tight for cast, not real bad but definitely tight. This is for a 325PD. Lots of throat length so I was thinking of loading cast in AR cases seated long and upping the powder charge slightly. I am not trying to make a magnum out of it, more like 45 ACP+P with cast. ***** Trey.... any such abrasion takes you into exotica. I suspect a call to S&W will get you a firm “No!” Before you touch a tool, get on the information trail. Ronnie Wells may have more knowledge than anyone on Singleactions, certainly as regards firearms, surgical instruments, space craft, and Top Fuel dragsters. Whatever technique is used, it can’t be the wrong one. David Bradshaw |
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Post by bradshaw on Mar 16, 2023 7:40:01 GMT -5
Trey and I just got off the horn, as he had written “625PD”, when he meant Model 325PD. A “6” prefix in S&W model nomenclature denotes stainless steel frame. “3” prefix denotes aluminum frame.
David Bradshaw
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Post by contender on Mar 16, 2023 8:29:07 GMT -5
Ask 2 dogs. He does cylinder honing & such.
I have a titanium cylinder in my S&W 646 .40 cal. I had the cylinder cut just a little at the rear to allow quicker loading (competition) with the moons. Just a slight chamfer to break the sharp edge. The guy who did it said he had to buy a special cutter.
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Post by Lee Martin on Mar 16, 2023 9:52:46 GMT -5
First off, honing is always better than reaming. It produces a more concentric throat and smoother finish. But there's a catch with titanium. S&W coats their titanium surfaces. Break through that and it exposes porous metal which can erode. If it shoots well, leave it alone. -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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Post by squawberryman on Mar 16, 2023 10:24:30 GMT -5
Werd
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Post by AxeHandle on Mar 16, 2023 16:33:27 GMT -5
Remember...  |
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Post by x101airborne on Mar 16, 2023 17:03:17 GMT -5
Well there ya go. Thanks guys for the information.
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Post by handloadingnotes on Mar 16, 2023 18:01:04 GMT -5
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shorty500
.327 Meteor
too many dirty harry movies created me!
Posts: 933
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Post by shorty500 on Mar 16, 2023 20:22:54 GMT -5
As a machinist/toolmaker I’ll just say titanium is a different critter to any steel, stainless steel or aluminum alloy from the simple aspect of cutting it to shape.
But am by no means any kind of expert regarding titanium.Since S&W feels it needs some kind of coating/treatment that’s subject to degradation if abravively
touched says TONS! Have owned 2 of this series of design. The Special left my card before I discovered some insights to accuracy in the more modern EDM
barrels used, my m329 remains and is a shooter a very good shooter given proper ammo- throats are tighter than my mindset/common sense/good logic suggest
should work well but……regardless it’s shoots far better than my ancient eyes & hands can hold for.
I actually mounted a 2X scope on it early on (it’s from 1st year production) and benched it at 50yards- no way could I ever hope to shoot it to its real potential from
accuracy standpoint. A 314 grain as cast from my w/w alloy with slightly over a starting load of Lil’Gun yields 1100fps or so and will THUMP whatever needs THUMPED!
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Post by x101airborne on Mar 17, 2023 8:23:21 GMT -5
I read the article posted above in the link and holy moly! Sure am glad I have no plans to hot-rod the 45 ACP cartridge! Some of those revolvers look down right trashed! I know the article says they in fact are trashed, but I have never seen anything like that before so there is a lot of shock to my small brain. Thank you to all who have responded.
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Fowler
.401 Bobcat
Posts: 3,663
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Post by Fowler on Mar 17, 2023 9:06:33 GMT -5
The beautiful thing about cast bullets is they can be sized to whatever you need them to be. Have you been able to accurately size the throats with pin gauges? Or will a .452” or .451” dia jacketed bullet go through the throats? The standard dia for 45acp tends to be .451” and not .452” that we generally think of due to our revolver geared brains over here. I know my brothers Colt brand 1911s get bitchy with .452” dia bullets and happy with .451” because of tight chambers.
Just a thought
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Post by x101airborne on Mar 17, 2023 9:18:07 GMT -5
I do not have pin gauges but a .451 jacketed bullet will not go through the throats. It shoots ok, not great; or at least I should say I dont shoot it great. Good enough for defensive work but a possum at 30 yards is pretty safe.
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aciera
.375 Atomic
Posts: 2,202
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Post by aciera on Mar 18, 2023 19:21:38 GMT -5
I have a 329 and was going to do a low pressure 475 (it will be a 45 colt)so called Dave Manson.
Special grind on the reamer and recoat……
I’ll swap someone for a stainless cylinder and rechamber that.
Known Dave for years. Knows his stuff.
Only person in years I could talk a long time on reamer making and enjoy it.
Titanium compounds with materials at a lower temp than many specialty steels.
Always vacuum HT
Used to use it to clean other materials during HT
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Post by stubshaft on Mar 19, 2023 4:34:01 GMT -5
WOW, I had to go and check my 325PD and Performance Center 646 just to make sure there are no issues with the cylinders. I usually "baby" the cylinders when I clean them as I have read the warnings S&W put out.
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