Where to get 45 super ammo?

[B]

I fired thousands and thousands of Super through my stock Gen 4 21 without seeing a single bulge. Or having any issues at all. Any gun with a feed ramp (most everything out there) is not "fully" supported. I have never seen any Glock produce a bulge with ammunition running at proper pressures, or where crappy reloads weren't involved. It's a thing, sure. It's also pretty overblown and explainable.

Starline's Super brass is identical to their Rowland brass aside from length. Buy whatever makes you comfortable. I understand first hand and extensive experience probably isn't as good as 40 year old statements made when the gun in question and most every other .45 beyond the 1911 didn't even exist.

 

[Painkillers]

To shoot .45 Super..a supported chamber is needed.
It’s not me stating it, but the inventor of the .45 Super - Dean Grennell did specify that way back in late 1980.
Still got some articles written by him on it.

Glock are notorious to produce the ‘glock bulge’ on 9 mm - .40 and 45 acp.
I doupt very much this is a proper gun for the .45 Super.

The .45 Super never took off and no big name commercial ammo maker ever produced it.
If it was not for Starline to offer case..this will be a dead cartridge like the .451 Detonic.

Interesting, thank you.

 

[Longgong67]

I fired thousands and thousands of Super through my stock Gen 4 21 without seeing a single bulge. Or having any issues at all. Any gun with a feed ramp (most everything out there) is not "fully" supported. I have never seen any Glock produce a bulge with ammunition running at proper pressures, or where crappy reloads weren't involved. It's a thing, sure. It's also pretty overblown and explainable.

Starline's Super brass is identical to their Rowland brass aside from length. Buy whatever makes you comfortable. I understand first hand and extensive experience probably isn't as good as 40 year old statements made when the gun in question and most every other .45 beyond the 1911 didn't even exist.

Thanks so much B, your input was what I was truly hoping to get back!! I'll start slow and work up with my loads. Really lookin forward to it!

 

[gdawg]

I have never seen any Glock produce a bulge with ammunition running at proper pressures, or where crappy reloads weren't involved.

That is another key point. 45 Super is rated to 28000 psi. 9mm +p and 10 mm is about 38000 psi.

 

[alpining]

I fired thousands and thousands of Super through my stock Gen 4 21 without seeing a single bulge. Or having any issues at all. Any gun with a feed ramp (most everything out there) is not "fully" supported. I have never seen any Glock produce a bulge with ammunition running at proper pressures, or where crappy reloads weren't involved. It's a thing, sure. It's also pretty overblown and explainable.

Starline's Super brass is identical to their Rowland brass aside from length. Buy whatever makes you comfortable. I understand first hand and extensive experience probably isn't as good as 40 year old statements made when the gun in question and most every other .45 beyond the 1911 didn't even exist.

Very true - The brass can clearly handle it, but the chamber that the round is fired in could be anything from a poorly built antique on up to the current Springfield XD (or H&K Mk23 - I think this is the only other current pistol, I couldn't remember earlier, actually rated by the manufacturer to handle 45 Super). 40 years ago, the range of 45ACP pistols in common use was much more limited.

It is a bit similar to how 45 Colt can very easily be loaded beyond 44 Magnum, but only in the right guns.

I'm glad that your gen4 G21 is holding up well - I will stand by my advice to others that they can expect accelerated wear if you simply swap out the recoil spring - Whether it is significant, or whether it matters to them, of course that's up to the individual to decide.

That is another key point. 45 Super is rated to 28000 psi. 9mm +p and 10 mm is about 38000 psi.

45 Super does not have a SAAMI spec, and nobody wants to go out on a limb and provide a pressure limit. The published load data often comes in around this figure, but as has been noted, in theory there is no reason why 45 Super cannot be loaded to the same pressures as 460 Rowland. Some interesting info here:

https://ballisticsbytheinch.wordpress.com/category/460-rowland/

 

[gdawg]

Very true - The brass can clearly handle it, but the chamber that the round is fired in could be anything from a poorly built antique on up to the current Springfield XD (or H&K Mk23 - I think this is the only other current pistol, I couldn't remember earlier, actually rated by the manufacturer to handle 45 Super). 40 years ago, the range of 45ACP pistols in common use was much more limited.

It is a bit similar to how 45 Colt can very easily be loaded beyond 44 Magnum, but only in the right guns.

I'm glad that your gen4 G21 is holding up well - I will stand by my advice to others that they can expect accelerated wear if you simply swap out the recoil spring - Whether it is significant, or whether it matters to them, of course that's up to the individual to decide.





45 Super does not have a SAAMI spec, and nobody wants to go out on a limb and provide a pressure limit. The published load data often comes in around this figure, but as has been noted, in theory there is no reason why 45 Super cannot be loaded to the same pressures as 460 Rowland. Some interesting info here:

https://ballisticsbytheinch.wordpress.com/category/460-rowland/

We are not in full disagreement here, brother. At the end of the day, common sense still applies. A steady diet of any higher pressure ammo will increase wear. Make the mods you deem appropriate or are comfortable with based on the power and volume you plan to shoot.

But take a look at the published reloading data for the 45 super. SAAMI might not provide a pressure limit but those publishers sure do. Those specs (at least that I've seen), as with the factory ammo available, don't come close to 460. You might be equating the 2 and they are different animals. From what I've heard, most people who shoot the 'occasional' factory powered Super with good brass in their Glock, seem to run it fine with just the upgraded spring. If you want to reuse the brass numerous times, shoot high volume, or go beyond published recommendations, you need a more dedicated set-up or accept you are taking a greater risk and accelerating wear on your firearm.

 

[alpining]

We are not in full disagreement here, brother. ...

But take a look at the published reloading data for the 45 super. SAAMI might not provide a pressure limit but those publishers sure do. Those specs (at least that I've seen), as with the factory ammo available, don't come close to 460. You might be equating the 2 and they are different animals. ...

Agreed, only slightly disagree

Those who publish load data for 45 Super only list the pressure for the load they're publishing - Not the same as the max pressure for the cartridge.

 

[Butcherbill]

I fired thousands and thousands of Super through my stock Gen 4 21 without seeing a single bulge. Or having any issues at all. Any gun with a feed ramp (most everything out there) is not "fully" supported. I have never seen any Glock produce a bulge with ammunition running at proper pressures, or where crappy reloads weren't involved. It's a thing, sure. It's also pretty overblown and explainable.

Factory 10mm glock barrel will leave a bulge, doesn’t matter if it’s factory loads or hand loads. Not a big deal if you don’t hand load but brass life suffers if you do, swapping to an aftermarket barrel with a supported chamber solves this. As well as being able to shoot cast lead, which glock doesn’t recommend out of their rifling. I’ve watched a couple videos of piss poor accuracy with heavy cast 10mm bullets through factory polygonal rifling, same heavy cast loads through a KKM barrel stabilized fine.