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Post by singleaction on Aug 18, 2024 15:50:13 GMT -5
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Post by dobegrant on Aug 18, 2024 21:05:22 GMT -5
Very informative video
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Post by iwsbull on Aug 18, 2024 23:01:49 GMT -5
Thanks for the heads up.
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Post by boxhead on Aug 19, 2024 0:25:34 GMT -5
He is the master. Nicely done.
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Post by rjm52 on Aug 19, 2024 8:36:39 GMT -5
Great informative video...but two questions...
If the Colt guns are so weak compared to a Uberti, why have there been SAAs in .45 ACP just like Uberti? I would not say the first generation SAAs were suitable for .45 ACP loads but apparently Colts of post WWII manufacture are..
Second as to carrying 6 rounds, he talks about the drop test and shows how easy the primer is set off when the firing pin is sitting on the primer...but no one ever talks about how much pressure it takes to break the safety notch when the gun is carried with six in the cylinder and the safety engaged... He then talks about the extra length cylinder pin and how the Uberti guns can pass the drop test with that engaged...but this is still a manual engagement and no one would carry one with that safety engaged...
Bob
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Post by singleaction on Aug 19, 2024 8:52:07 GMT -5
Great informative video...but two questions... If the Colt guns are so weak compared to a Uberti, why have there been SAAs in .45 ACP just like Uberti? I would not say the first generation SAAs were suitable for .45 ACP loads but apparently Colts of post WWII manufacture are.. Second as to carrying 6 rounds, he talks about the drop test and shows how easy the primer is set off when the firing pin is sitting on the primer...but no one ever talks about how much pressure it takes to break the safety notch when the gun is carried with six in the cylinder and the safety engaged... He then talks about the extra length cylinder pin and how the Uberti guns can pass the drop test with that engaged...but this is still a manual engagement and no one would carry one with that safety engaged... Bob I believe there were some pre-war SAA guns made up in 45 acp. However, there is so much variation in the materials/strength of pre-war guns that it makes some sense to say they were generally not strong enough. If you are talking about the half-cock notch, it is not a safety at all, but just allows one to rotate the cylinder for loading. |
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fm027
.30 Stingray
Posts: 101
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Post by fm027 on Aug 19, 2024 9:00:29 GMT -5
Great informative video...but two questions... If the Colt guns are so weak compared to a Uberti, why have there been SAAs in .45 ACP just like Uberti? I would not say the first generation SAAs were suitable for .45 ACP loads but apparently Colts of post WWII manufacture are.. Bob Blackpowder-era Colt cylinders were a lower grade steel without heat treatment is the short answer. That's what makes the early first gens weak compared to the steels and heat treatments the 2nd gen cylinders got. The better steels post-wwII along with the heat treatments is what allows 21,000psi safely through them. Uberti on the other hand makes their cylinders (10-thou +/-) thicker in diameter than Colt does. That, was Uberti's approach to additional strength for higher pressures and better safety margins in theirs. |
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Post by rjm52 on Aug 19, 2024 10:25:36 GMT -5
"If you are talking about the half-cock notch, it is not a safety at all, but just allows one to rotate the cylinder for loading."
...no, the first click safety notch.
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Post by Encore64 on Aug 19, 2024 13:21:35 GMT -5
The Uberti Cylinders I've measured are about .020" larger than Colt. That puts outside wall thickness at .010" thicker than Colt's which certainly adds strength.
I don't believe the statement of strength comes simply from the ability to safely chamber the 45 ACP. As already mentioned, Colts have definitely been so chambered.
There have been experiments run to intentionally blow guns up. Guys like Brian Pearce (and others) have done this.
Such data cannot be published. Folks would incorrectly assume they stay just below destruction pressures and be fine.
But, when Brian Pearce says they're stronger, it's because he's well informed.
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rWt
.375 Atomic
Posts: 1,568
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Post by rWt on Aug 19, 2024 13:50:50 GMT -5
It was an interesting video.
Now I wonder how the 45 Colt Uberti's strength compares to USFA, Ruger mid-sized frame (NM Vaquero) and Standard Manufacturing?
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Post by singleaction on Aug 19, 2024 17:06:28 GMT -5
It was an interesting video. Now I wonder how the 45 Colt Uberti's strength compares to USFA, Ruger mid-sized frame (NM Vaquero) and Standard Manufacturing? Brian stated, in fairly recent Handloader magazine article, stated the Uberti’s made within the last 25 years, or so, are good for 23k psi, in 45 Colt/acp. However, he does not recommend it, due to premature wear. |
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Post by Encore64 on Aug 19, 2024 17:17:15 GMT -5
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Post by lar4570 on Aug 20, 2024 8:51:28 GMT -5
In the video he said that Uberti uses a European grade of steel that is very similar to our 4140 and is the same Rockwell hardness as Ruger. With that being said, what is the difference is cylinder size between a Uberti and a Ruger midframe cylinder?
Then if we hop over to the Bad Boy 44 mag thread, how does the cylinder size compare to Ruger's SBH?
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Post by justplainbill on Sept 11, 2024 21:40:45 GMT -5
I don't know about the Uberti and the Ruger midframe, but My Bad Boy cylinder measures 1.683" and My Old Model Super Blackhawk measures 1.730"
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Post by z1r on Sept 12, 2024 15:15:18 GMT -5
.... He then talks about the extra length cylinder pin and how the Uberti guns can pass the drop test with that engaged...but this is still a manual engagement and no one would carry one with that safety engaged... Bob True, it allows the manufacturer to pass the drop test without redesigning the beloved 4 click operation buyers wax poetic about. That said, I know of at least one instance of this feature saving someone's life. I had a buddy in Texas that had one of these Ubertis. He walked into the house on his isolated ranch to find someone had entered through the back and was on their way out with his Uberti and a bag of goodies. The Intruder leveled the Uberti, cocked the hammer and then pulled the trigger several times. Fortunately, the owner stored the revolver with the pin in the "safe" position. The owner pulled his carry piece and shot the intruder. Happy ending. |
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