gsp7
.30 Stingray
Posts: 421
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Post by gsp7 on Mar 29, 2020 7:59:00 GMT -5
I have a copy of Handloader 236 in which Pearce states that Uberti .44 Special's should be limited to 15,000 psi. The same Uberti SA can be had in 45 ACP whose maximum pressures are 19,000 psi (21,000 psi in +P), so why would the thicker .44 Special cylinder not be capable of at least the same pressure? Unique, Power Pistol or Herco, I've used them all to run 255-260 gr. cast SWC's as fast as 1100+ fps in three different Uberti's. Cholla See...we do agree most of the time. I agree 100% with this post. I do think I read a disclaimer from a couple gun writers who advised against anything over 15,000 psi just because "They didn't know what steel was used in Uberti Guns." But, Cholla is right on the money with his logic. I use the 22,000 psi load data in my 44 Special Uberti with no problem. Also, load my 38-40s and 44-40s the same due to cases being smaller in diameter than the 45 ACP. Especially true at the lock notches on the tapered cartridges. Good to Know. I was wondering about Pearce's 22,000 loads in my Uberti. Thanks for mentioning that .
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Post by Encore64 on Mar 29, 2020 10:45:32 GMT -5
This is from Brian Pearce. Hope it helps...
Brian Pearce of Handloader Magazine addressed this subject in his column to a readers question in the March/April 2017 issue when he stated:
"....Most (Uberti cylinders)manufactured since the late 1990s have tested at 34 and are constructed of quality 4130 series chrome-moly steel. The Uberti revolver features a more or less .020-inch larger diameter cylinder ( 1.670 inches) than the Colt SAA ( 1.650 inches); however, the distance from the axis of the cylinder and the center of the bore is the same. This adds significant steel to the outside of the cylinder, as well as over the bolt notch ( effectively doubling that thickness), which is the SAA pattern revolver's weak link. If your Uberti is of late manufacture, it will handle .45 Colt loads that generate similar pressures as .45 ACP factory loads that are industry rated at 21,000 psi, or 23,000 psi for +P loads...."
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gsp7
.30 Stingray
Posts: 421
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Post by gsp7 on Mar 29, 2020 12:18:20 GMT -5
This is from Brian Pearce. Hope it helps... Brian Pearce of Handloader Magazine addressed this subject in his column to a readers question in the March/April 2017 issue when he stated: "....Most (Uberti cylinders)manufactured since the late 1990s have tested at 34 and are constructed of quality 4130 series chrome-moly steel. The Uberti revolver features a more or less .020-inch larger diameter cylinder ( 1.670 inches) than the Colt SAA ( 1.650 inches); however, the distance from the axis of the cylinder and the center of the bore is the same. This adds significant steel to the outside of the cylinder, as well as over the bolt notch ( effectively doubling that thickness), which is the SAA pattern revolver's weak link. If your Uberti is of late manufacture, it will handle .45 Colt loads that generate similar pressures as .45 ACP factory loads that are industry rated at 21,000 psi, or 23,000 psi for +P loads...." I have a 17 year old AWA long horn .45colt saa and I measured/compared it to my uberti with a caliper. I dont remember the exact measurements , but the Uberti cylinder was a little larger diameter than the AWA and the top of the frame appears thicker also. The Uberti fit a holster tighter than the AWA is what got me to measure it .
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Post by Encore64 on Mar 29, 2020 12:22:06 GMT -5
IMHO, the Uberti Flattop Target Revolvers are the most underrated buy in revolvers today.
Only available in 44-40 and 45 Colt from Dixie Gun Works.
I bought both. Added a 44 Special Cylinder to the 44-40 and a 45 ACP Cylinder to the 45 Colt.
My favorite guns for pleasure shooting.
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gsp7
.30 Stingray
Posts: 421
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Post by gsp7 on Mar 30, 2020 8:56:54 GMT -5
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Post by pbcaster45 on Mar 30, 2020 9:42:13 GMT -5
Here's a few...
Gun: Colt New Frontier .44 Special 7 1/2 inch bbl.
Bullet: Leadhead/RCBS 44-250K (.432) Powder: IMR SR-4756 7.8 grs. Primer: Federal 150 Case: Starline Avg. Vel.: 920.43 fps
Bullet: Montana Bullet Works 240 gr. SWCGC (BHN 15/.432/SPG/Hornady GC) Powder: Alliant Power Pistol 6.9 grs. Primer: Winchester Large Pistol Case: R-P Velocity: 882 fps
Gun: Ruger Flattop Bisley .44 Special 5 1/2 inch bbl.
Bullet: Lyman 429421 250 gr. Keith (.430/11 BHN) Powder: Alliant Herco 6.8 grs. Primer: Federal 150 Case: Magtech .44 Special Comments: Smoky, but very accurate! No leading at all…
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