|
|
Post by reflex264 on Jun 8, 2022 7:10:59 GMT -5
For those entering the conversation late, the purpose of the 460 Rowland is not to kill elk and moose. I have bigger badder stuff for that purpose. It is a more specialized deer and hog gun. Specifically it is a gun easier to handle in a tree stand.
|
|
Odin
.375 Atomic
Posts: 1,099
|
Post by Odin on Jun 8, 2022 8:13:08 GMT -5
I've been thinking about a similar setup for a number of years, more specifically a 45 Colt/ACP/Super gun. This thread has been really encouraging and is very timely considering some major life changes happening in my corner of the world.
|
|
|
|
Post by rjm52 on Jun 8, 2022 8:31:21 GMT -5
Not much of a .45 shooter but did pick up a really clean 1974 vintage New Model with a 4 5/8" barrel that has both cylinders....
Have loads for a Kimber .45 Super that run 230s at 1100 and 245s and 255s at 1050 fps that I haven't tried in the Ruger yet...
|
|
cmillard
.375 Atomic
MOLON LABE
Posts: 1,996
|
Post by cmillard on Jun 8, 2022 8:47:30 GMT -5
For those entering the conversation late, the purpose of the 460 Rowland is not to kill elk and moose. I have bigger badder stuff for that purpose. It is a more specialized deer and hog gun. Specifically it is a gun easier to handle in a tree stand. I agree, however, I wouldn't hesitate one bit to take either an elk or moose with it, given the right projectile. |
|
|
|
Post by reflex264 on Jun 8, 2022 8:57:00 GMT -5
For those entering the conversation late, the purpose of the 460 Rowland is not to kill elk and moose. I have bigger badder stuff for that purpose. It is a more specialized deer and hog gun. Specifically it is a gun easier to handle in a tree stand. I agree, however, I wouldn't hesitate one bit to take either an elk or moose with it, given the right projectile. I would too with the 240XTP MAG OR 265 cast. I just have some guns I consider better choices. |
|
|
|
Post by Encore64 on Jun 12, 2022 8:35:51 GMT -5
For those interested, I measured the capacity of three cases this morning.
In an auto, the 460 Rowland has no capacity advantage due to the OAL remaining the same.
But, since we're talking revolvers, it does matter. That's if we load by seating depth instead of OAL.
Using H110 Powder, capacity is as follows:
460 Rowland 31.0 grns (Starline)
45 ACP +P 28.5 grns
(Starline)
45 Auto Rim 29.3 grns (R-P)
NOTE: I trimmed a 460 Rowland case to 45 ACP length. Powder capacity was identical. When loaded to the same OAL, Data and Preesure should be virtually the same...
|
|
Odin
.375 Atomic
Posts: 1,099
|
Post by Odin on Jun 12, 2022 11:58:29 GMT -5
For those interested, I measured the capacity of three cases this morning. In an auto, the 460 Rowland has no capacity advantage due to the OAL remaining the same. But, since we're talking revolvers, it does matter. That's if we load by seating depth instead of OAL. Using H110 Powder, capacity is as follows: 460 Rowland 31.0 grns (Starline) 45 ACP +P 28.5 grns (Starline) 45 Auto Rim 29.3 grns (R-P) NOTE: I trimmed a 460 Rowland case to 45 ACP length. Powder capacity was identical. When loaded to the same OAL, Data and Preesure should be virtually the same... Super stuff here. Thank you for sharing your work. I realize that there are those who say, HARRUMPH!! Why do you need to hotrod perfection?!? But I see it as being very similar to various load/pressure/power levels of a number of our beloved straightwall cartridges. To me, versatility is a good thing. |
|
|
|
Post by Encore64 on Jun 12, 2022 12:04:09 GMT -5
My answer is that we all have varying definitions of "perfection." But, certainly agree with you on that.
Modern powders make flashy ballistics in 45 ACP Cases possible.
As Reflex264 has pointed out, you don't need 40k to get impressive performance.
|
|
|
|
Post by tdbarton on Jun 13, 2022 20:35:42 GMT -5
For those interested, I measured the capacity of three cases this morning. In an auto, the 460 Rowland has no capacity advantage due to the OAL remaining the same. But, since we're talking revolvers, it does matter. That's if we load by seating depth instead of OAL. Using H110 Powder, capacity is as follows: 460 Rowland 31.0 grns (Starline) 45 ACP +P 28.5 grns (Starline) 45 Auto Rim 29.3 grns (R-P) NOTE: I trimmed a 460 Rowland case to 45 ACP length. Powder capacity was identical. When loaded to the same OAL, Data and Preesure should be virtually the same... To me, this starts to get real interesting real quick |
|
|
|
Post by Encore64 on Jun 14, 2022 5:29:59 GMT -5
Fascinating how these small capacity cases and 12+/- grns of powder gets so close to 44 Magnum Ballistics...
|
|
|
|
Post by reflex264 on Jun 14, 2022 7:20:34 GMT -5
Pressure is a strange thing. Pressure curves are even stranger. The concept for beginning this project came from not being able to launch a 240gr Sierra over 1100fps from a 45 Colt case in a 4 5/8" barrel. Obviously more case capacity but there isn't a powder that exist that can do it within safe pressures. A 7 1/2" barrel does it easily with H110. The smaller case of the Rowland coupled with the faster powders allows the pressure to peak much earlier. Another factor that I didn't consider on the start was the very long throat acting more like more barrel length. I was more concerned about gas lost at the cylinder gap. That turned into a non issue. I guess if I had been swinging for the fence with the Rowland that might have become an issue. As it is I achieved my goal without going to the upper limit. It does start to encroach into .44 Magnum territory.
|
|
|
|
Post by Encore64 on Jun 14, 2022 8:41:25 GMT -5
I've got the 460 Rowland in a 1911 and Glock 21 Platform. But, might take a different path on a revolver.
I do wonder what could be accomplished with a 5-Shot 45 ACP Revolver. Starline 45 +P and 45 Super Cases have the same strength as their Rowland Cases.
Hmmm....
|
|
|
|
Post by needsmostuff on Jun 14, 2022 9:25:41 GMT -5
|
|
|
|
Post by reflex264 on Jun 14, 2022 11:50:34 GMT -5
I do the Glock thing as well.  |
|
owen67
.30 Stingray
Posts: 251
|
Post by owen67 on Jun 14, 2022 16:35:19 GMT -5
I reckon you could accomplish just what you see here. The case volume for a given oal is the same, and the cases you mentioned are 1/16” shorter than the Rowland. I mean unless you are saying you want to get crazy pressures and load to Cassul and .460 S&W pressure levels. In which case that would be so far off the reservation I’d not want to attempt without full pressure test equipment. A full case of mid to fast powder scares me, but I may have less need for excitement than others!  |
|
