rjtodd
.240 Incinerator
Posts: 76
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Post by rjtodd on Jun 20, 2024 22:29:36 GMT -5
OK, gents, so I went back and did a better slug/measurement of my cylinder mouth(s). I'm showing .430" So, with a bore size of .427", and cylinder mouth of .430", which would be the preferable 200 grain cast bullet?: a) .427 b) .428 c) .430 There seem to be two schools of thought from what I'm reading (and when chamber mouth size is larger than bore size), either: bore size + .001", or those who size to the chamber mouth. Thoughts? Thanks, DeWayne My vote is match your cylinder throats at .430”.. Randy
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steve
.375 Atomic
Posts: 1,547
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Post by steve on Jun 21, 2024 0:17:31 GMT -5
.430 cylinder throat size.
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Post by Encore64 on Jun 21, 2024 5:03:04 GMT -5
I'll also recommend .430"...
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Post by eisenhower on Jun 21, 2024 9:43:29 GMT -5
Gents, when I take a 240-grain .430" bullet (which I'm using for 44 Special/Magnum) and do the drop test into my SAA cylinder, I find that not only does it hang up, but I cannot push it through without a hammer and dowel. Yet, when I slug the same chamber, I'm measuring exactly .430".
SO ... do you still recommend .430 bullets in this pistol, or something that will fit through easier like .429, .428? I don't know how much force should be required to punch the bullet through and not blow up the cylinder.
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Post by Cholla on Jun 21, 2024 10:17:30 GMT -5
How did you measure your cylinder throats? The most accurate way to measure them is to drive a soft lead ball through the mouths then measure the ball with a micrometer. That said, your load(s) seem pretty accurate so you may already be on the right path.
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Post by eisenhower on Jun 21, 2024 10:32:40 GMT -5
To measure the throats, I took a lead bullet (a .427) and hammered on it a bit to obdurate the base larger than .430", then drove it through the cylinder mouth with a hammer and dowel. I then measured the base of the bullet at .430".
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steve
.375 Atomic
Posts: 1,547
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Post by steve on Jun 21, 2024 12:14:57 GMT -5
You're over thinking it.
Size 6 bullets to .430 and shoot them....trust us, you'll like it!
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rjtodd
.240 Incinerator
Posts: 76
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Post by rjtodd on Jun 21, 2024 17:45:11 GMT -5
Looks like our new loader is buying his bullets. He will have to accept store bought for now. BUT, I agree. Buy the .430. Pressure increase will be inconsequential. Accuracy will likely improve.
Randy
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sharps4590
.30 Stingray
I'm a Christian first, husband and father next then a patriotic, veteran, firearms aficionado.
Posts: 361
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Post by sharps4590 on Jun 21, 2024 17:59:18 GMT -5
Today, I got a Lee Loader kit to try my hand at the "whack-a-mole" method. I have to say, it was super simple and seemingly pretty fool-proof, which is right up my alley. Unlike my learning curve with the Lyman tool and .44-40, I loaded 50 rounds of .44 Special and didn't damage a single case. Now, I really want to find a Lee Kit in .44-40 (no longer in production) so I can sell this Ideal tool to a collector. The Lee kits let me adjust my crimp so it's just right, which I can't do with the Ideal. DeWayne View AttachmentThat's what Dad started me with back in 1962 when I was 9. They work just fine. I have a bit more some 62 years later.
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Post by eisenhower on Jun 21, 2024 18:01:24 GMT -5
Looks like our new loader is buying his bullets. He will have to accept store bought for now. BUT, I agree. Buy the .430. Pressure increase will be inconsequential. Accuracy will likely improve. Randy Yes, for sure, I'm buying not casting. These are Missouri Bullet Co. pre-lubed bullets. Problem is, they sell in quantities of 500, so a purchase is a bit of a commitment. DeWayne
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sharps4590
.30 Stingray
I'm a Christian first, husband and father next then a patriotic, veteran, firearms aficionado.
Posts: 361
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Post by sharps4590 on Jun 21, 2024 19:42:56 GMT -5
You might be surprised how fast that commitment goes.
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Post by bigbore5 on Jun 21, 2024 20:19:19 GMT -5
500? That's about three weeks worth! There's a reason I moved to the Apex 10 press
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Post by eisenhower on Jun 22, 2024 16:24:42 GMT -5
OK guys, different reloading question for a different gun(s).
I just bought one of the new Ruger/Marlin 1894 carbines in .44 Magnum, as I was hoping to load for both it and my Ruger Bisley Super Blackhawk in .44 Magnum. The old carbine/pistol combo scenario.
Here's the specs on both.
Pistol: Bore=.429"; Cyl Mouths=.4305
Carbine: Bore=.430"
So, the question is, I'm thinking I should shoot .431" cast bullets in the Marlin, but will a .431" bullet be safe in the .429" bore of the Ruger pistol?
Thanks, DeWayne
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sharps4590
.30 Stingray
I'm a Christian first, husband and father next then a patriotic, veteran, firearms aficionado.
Posts: 361
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Post by sharps4590 on Jun 22, 2024 17:30:37 GMT -5
I would. You generally size cast bullets .001 - .002 over groove diameter.
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Post by contender on Jun 22, 2024 19:09:57 GMT -5
Will it be safe? Yes. But only each gun can let you know if it's accurate or not.
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