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Post by Encore64 on Jul 14, 2023 9:17:16 GMT -5
I've researched this question for some time. Web searches, reading other forums, etc. Always different information...
Some claim cases are thicker one way or the other, some claim cases are made from different alloys, others say both.
So, I decided to go straight to the only source for either case that I'm aware of, Starline.
I emailed this morning and got this prompt reply. So, now we know for certain...
Huey,
Other than the headstamp and case length the Super and Rowland are identical.
Regards,
Hunter Pilant
Process Manager
Chief Ballistician
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Post by iwsbull on Jul 14, 2023 9:38:20 GMT -5
Hard to get better info than the people making the product.
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Post by Encore64 on Jul 14, 2023 9:38:50 GMT -5
Hard to get better info than the people making the product. Agree 100%... |
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Post by mcderry on Jul 14, 2023 13:39:42 GMT -5
Basically the only major difference is you can't drop the Rowland into a regular 45 chamber. Theoretically 45 Super is 28k, but we know it can be hand loaded into Rowland territory with Rowland pressures.
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Post by Lee Martin on Jul 14, 2023 13:50:21 GMT -5
I always wanted to build a .451 Detonics, just to be different. Plus I have a thing for the 1980's. Cases can be made from .308 Win. But you can't go wrong with the Rowland or Super. -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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Post by Lee Martin on Jul 14, 2023 13:54:23 GMT -5
...come to think of it, I guess I could make .451 Detonics from .45 Win Mags too. -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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shorty500
.327 Meteor
too many dirty harry movies created me!
Posts: 912
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Post by shorty500 on Jul 14, 2023 14:18:37 GMT -5
Super/Rowland/Detonics- just different ways to skin the same cat basically. If you can guaranty the ammo handling/segregation etc to ensure stuff
doesn’t get in a normally setup ACP gun I prefer the Super. Others will want the longer cases. Currently I have a large semi-auto handgun supply of
Super cases. Half are virgin, remainder haven’t actually been loaded much given their age lol. My preferred load runs a 250 grain cast RFN @ 1120fps
From the typical m1911 barrel. There’s no gun in my collection currently that I wouldn’t fire this load in despite zero pressure data available.
I stole the basic recipe from a gun writer over 30 years ago-in 40 odd years of reloading it’s actually my favorite application for 2400!
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Post by Encore64 on Jul 14, 2023 15:04:53 GMT -5
I agree, same cartridges with different names. Some a tad longer to prevent chambering in the wrong guns.
Frankly, I've never had problems segregating ammo.
But, I wanted a definite answer on this question. I have a FA83 454 Casull/45 ACP coming soon.
I'll definitely be trying some 460 Rowland Level Loads in that gun.
I'll have the cylinder cut to accept Auto Rim. There is no downside to that.
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Post by Quick Draw McGraw on Jul 16, 2023 17:02:21 GMT -5
I spoke to Starline about it years ago. The person on the phone claimed the Rowland brass is heat treated differently and/or has a slightly different alloy.
I'm inclined to believe the email you got over the phone conversation I had. If someone is taking the time to respond, they either know or asked the roght person. And putting it in writing makes them liable, and I doubt they'd do that if this wasn't the truth.
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Post by Encore64 on Jul 16, 2023 17:05:09 GMT -5
Their website says the 45 Super receives the same heat treating which is what prompted me to ask.
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Post by Quick Draw McGraw on Jul 16, 2023 17:07:06 GMT -5
Their website says the 45 Super receives the same heat treating which is what prompted me to ask. Glad you did. Like I said, I think I got someone on the phone who was just winging it. I think you got the correct answer. |
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Post by Encore64 on Jul 16, 2023 18:12:04 GMT -5
Since the COL and Brass Case are the same, reloading data will be the same.
This will make load development much easier than starting from scratch...
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Post by lar4570 on Jul 18, 2023 17:13:05 GMT -5
Since the COL and Brass Case are the same, reloading data will be the same. This will make load development much easier than starting from scratch... Isn't the 460 Rowland loaded to much higher pressures than the Super? |
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Post by cas on Jul 18, 2023 18:36:52 GMT -5
Their website says the 45 Super receives the same heat treating which is what prompted me to ask. Is it "supposed" to? Meaning was the original brass as well? (who'd know) That could be something Starline does because it's easier just to do it all, and adds built in safety. |
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bamagreg
.327 Meteor
Woodstock, GA
Posts: 859
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Post by bamagreg on Jul 19, 2023 4:51:49 GMT -5
So I must be missing something. How is it possible to shoot 45 acp or 45 super Ammo in a gun chambered for 460 Rowland? Since they headspace off of the case mouth wouldn’t the acp drop too far into the chamber?
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