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Old 08-12-2017, 10:02 PM
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Default 4506 45 Super?

Will a 4506 with heavy springs hold up to 45 Super loads? Is only the recoil spring needed?
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Old 08-12-2017, 10:12 PM
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I have been shooting 45 SUPER for decades, but never in a 4506.


In addition to the Springfield that was specifically made for the 45 SUPER I use HK USPs and Smith & Wesson model 625s. That does not include the long guns

I do not know if a 4506 is a candidate for conversion

In addition to a stiffer spring for the 4506, the barrel must have a fully supported chamber.

I do not own a 4506 to examine. Pull your barrel and check it first.
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Old 08-12-2017, 10:22 PM
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Real Guns - A kimber in .45 Super for $8

This is for converting a 1911 but the same principles are involved. Springs should be available from Wolff.

The 4506 is built like a tank so that is a non-issue.

Bruce
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Old 08-12-2017, 10:24 PM
Charlie Foxtrott Charlie Foxtrott is offline
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Default I have been shooting my 4506-1-3.

Converted to .45 Super for a while now. It runs well, and quite accurately as well. No negative issues to date.
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Old 08-14-2017, 02:42 AM
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Default 45 Super in 4586

As far as I know all the 45 3rd Gens have fully supported chambers, unless someone has played with their dremel on it.

I shoot handloaded S-L 45 Super in my 4586 with no problems. I'm currently using a flat wire ISMI GLC-22 for the recoil spring & a Wolff 20# mainspring. Adding Wolff +5% extra power magazine springs is a plus too.

The article BruceM mentioned is what I source my load data from also, 11.3gr/Power Pistol with a 185gr JHP. I also use it in my Colt Govt Series 70, without issue. The 1911 requires a bit more to set it up for 45 Super.

I seat the bullet for maximum COAL", & still pass the plunk test, which is 1.220" for the 4586 but only 1.200" for the 1911 (because it has less leade/freebore).

.

4586, 4-1/4" bbl.

(-04a)

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Old 08-14-2017, 10:13 AM
BEEMER1 BEEMER1 is offline
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Quote:
Originally Posted by colt_saa View Post
I have been shooting 45 SUPER for decades, but never in a 4506.


In addition to the Springfield that was specifically made for the 45 SUPER I use HK USPs and Smith & Wesson model 625s. That does not include the long guns

I do not know if a 4506 is a candidate for conversion

In addition to a stiffer spring for the 4506, the barrel must have a fully supported chamber.

I do not own a 4506 to examine. Pull your barrel and check it first.
I notice that you include the S&W 625 in your guns that can shoot the 45 Super.

Tritron back in the day had the 625 listed in their 45 Super info as capable of handling the 45 Super so I and a friend were both loading and shooting it in our revolvers. I contacted Sierra's online experts about which bullet they would recommend for whitetail hunting and was told that the 45 Super could ruin the pistol. I used that gun for pin shooting so I quit shooting the Supers in it.

My friend kept shooting them and all of a sudden his groups opened way up. If you look where the cylinder turning notch is, it sits right over the chamber making the wall paper thin. The 45 Super will cause a bulge to form there if loaded to max.
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Old 08-14-2017, 10:35 AM
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Quote:
Originally Posted by BEEMER1 View Post
My friend kept shooting them and all of a sudden his groups opened way up. If you look where the cylinder turning notch is, it sits right over the chamber making the wall paper thin.

The 45 Super will cause a bulge to form there if loaded to max.
That is simply not true that the cylinder wall is "paper thin"

It is also not true that 45 SUPER will bulge a cylinder at the stop notch unless that cylinder left the factory with a metallurgical defect

Now, are you trying to tell us that your friends revolver had a bulge at the cylinder stop notch and that caused the revolver to be inaccurate?

Or are these two totally unrelated comments?

You are correct that the cylinder stop notch is the thinnest part of the cylinder. So what? What makes you think that the thinnest part of the cylinder is not 100% capable of safely containing the pressure of the cartridge?

You are forgetting that 45 SUPER brass has a significantly stronger web to the cartridge casing than 45ACP. The strongest part of the brass is sitting over the thinnest part of the cylinder. Or was your buddy loading 45 ACP brass to 45 SUPER levels?

The 625 V-comp that I use for pins has had upwards of 20,000 45 SUPERs put through it over the years I have owned it.

Many folks even shoot the MUCH higher pressure 460 Rowland in their 625s

45ACP runs at 21,000 PSI
45ACP+P runs at 23,000 PSI
45SUPER runs at 28,000 PSI
460 Rowland runs at 40,000 PSI

The 625 is plenty strong for a cartridge like the 45 SUPER.

Quote:
Originally Posted by BEEMER1 View Post
I contacted Sierra's online experts about which bullet they would recommend for whitetail hunting and was told that the 45 Super could ruin the pistol.
Sierra's Ballistic staff does not make loading recommendations on cartridges that have not been submitted to SAAMI. Perhaps that is why you received that comment instead of information on the cartridge

Last edited by colt_saa; 08-14-2017 at 10:40 AM.
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Old 08-14-2017, 02:06 PM
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I'm not here trying to start an argument, just relaying information.

I shot probably 3-400 rounds of the Super through my 625 before calling Sierra. I was not calling for loading info, I was asking if the bullet was suitable for the velocity I was loading to. I liked the gun so I quit.

My friend said he ruined his, I never saw it. I was doing this way before my internet days but I have seen conflicting reports about this through the years, I do not know the answer.

Al I know is my 625 still knocks down pins and I still shoot my V16 with Supers but I went to a heavier spring than Springfield recommends and hate putting it back together. Cheers.
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Old Yesterday, 08:44 AM
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Quote:
Originally Posted by zzzippper View Post
Will a 4506 with heavy springs hold up to 45 Super loads? Is only the recoil spring needed?
The answer is yes it will quite easily...I am shooting 200 grain cast swc's at 1230 fps with no issues at all. I have a full sized 4506-1 and I replaced the stock 14 pound recoil spring with a Wolff 18 pound spring and replaced the stock firing pin spring for a Wolff extra power spring. Feeds perfectly from stock mags, doesn't throw brass 20 feet and maintained all its accuracy. I deer hunt with this gun. I found that I needed the stronger firing pin spring because I was seeing some firing pin drag on the primers with the stock spring.

Last edited by kingrj; Yesterday at 08:45 AM.
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Old Yesterday, 10:27 AM
MattyD380 MattyD380 is online now
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So, the 4506-1 is beefed up compared to the no-dash 4506 (which is more or less a 645, AFAIK).

Given that... is there any issue running 45 super in a no-dash 4506 or 645?
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Old Yesterday, 09:49 PM
Charlie Foxtrott Charlie Foxtrott is offline
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Default I can not say just yet.

Quote:
Originally Posted by MattyD380 View Post
So, the 4506-1 is beefed up compared to the no-dash 4506 (which is more or less a 645, AFAIK).

Given that... is there any issue running 45 super in a no-dash 4506 or 645?
But as soon as I get my 645 set up for 45 Super, I should know something. As near as I can tell the 645 is every bit as beefy as the 4506s. I would be surprised if the 4506 no dash or the 645 guns had any problems with the 45 Super round. I think the biggest issue is just getting 45 Super brass.
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Old Yesterday, 11:02 PM
chuck perry chuck perry is offline
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Google Ace Custom. They were at the forefront of 45 Super development, and performed conversions on both 1911s and the 4506.
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Old Today, 12:45 AM
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Quote:
Originally Posted by MattyD380 View Post
So, the 4506-1 is beefed up compared to the no-dash 4506...?
Not really. Should not be a problem in either if in good condition. Personally I wouldn't use less than a 20# recoil spring. The factory is 17#.

.

Quote:
Originally Posted by chuck perry View Post
Google Ace Custom. They were at the forefront of 45 Super development, and performed conversions on both 1911s and the 4506.
The old Ace Custom website hasn't worked in some time.

This archive link still works:
Ace Custom 45s, Inc.

.
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Old Today, 06:41 AM
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Quote:
Originally Posted by MattyD380 View Post
So, the 4506-1 is beefed up compared to the no-dash 4506 (which is more or less a 645, AFAIK).

Given that... is there any issue running 45 super in a no-dash 4506 or 645?
As far as suitability for the .45 super is concerned that is NO difference between the 645, 4506 and the 4506-1. Any and all can handle it fine. The slide/barrel mass is the same..
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Old Today, 06:49 AM
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If this is any help I copied this off the Wolff web catalog:

Recoil Springs

For Use in:
645, 745, 4506, 4526, 4546, .45ACP

Reduced Power : 8, 9, 10, 11 & 12 Lb. (Variable)
Factory Standard : 14 Lb.
Extra Power : 15, 16, 17, 18, 20, 22 & 24 Lb.

Recoil Calibration Pak below includes 1 each of 15, 16, 17, 18 and 20 pound extra power recoil springs. 3 extra power firing pin springs are also included.
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