curtmg's 45 Super thread.

curtmg

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Finally got to the range today to shoot my latest project, I'm setting my Glock21sf up, to shoot 45 Super ammunition. This really is a bit of a project.

First I ordered the Starline 45 Super brass from Jerry at Mystic Precision. I placed an order from Wolff Gunsprings, I got from them, a steel guide rod, with a 24 lb recoil spring. I also ordered their Glock Competition spring pack, from which I installed the 6lb trigger spring and lighter firing pin block spring. I didn't install the 4lb light firing pin spring, as I feared light firing pin strikes, if I were setting up a light target load shooter, I would have, but to unleash the 45 Super beast, I wanted the full force of the firing pin strike.

I also have a Ghost 3.5lb rocket connector, which, though not required for 45 Super, certainly makes for a much improved trigger, lighter, with a definite break, hardly any overtravel, and very minimal reset distance.

The gun wears XS Big Dot sights. Certainly they have their detractors, but I find them to be a superb sighting system that meets my needs very well. The tritium glows brightly, I can see them in a pitch dark room, I've gone so far as to shoot in near total darkness (one of the benefits of a not very busy indoor range), and could still keep all my rounds in a very respectable group.

La Piéce du Resistance, is the Storm Lake 4 port barrel. Offering near full case support, it gives the confidence needed to fire loads found on the net, which come with zero SAAMI back-up. 45 Super being a barely recognized wildcat, with only one source for loaded ammunition, which goes out of it's way, to disavow any and all load info found anywhere.

I'm not going to type out the loads I used, I will say I used what are listed as max loads using Power Pistol powder, which can be found in the links below. I believe them to be safe loads, as I worked up to them from 10% under. I didn't have my chrony with me, so I can't say how fast they were going. The shooting was surprisingly mild, compared to what I expected. The ported barrel really took a lot of the kick out. I didn't try them in the factory barrel, I'd expect a lot more recoil, and less velocity, as the SL barrel is almost 2 inches longer.

I didn't take any videos or pictures at the range, but to be honest, shooting 45 Super with the ported barrel, felt almost exactly like shooting 45 acp with the stock barrel. The ported barrel also makes 45 acp, feel like hyper velocity 22lr.

It was not a flawless performance, however. I am going to order from Wolff Springs, enough extra power magazine springs to outfit all my magazines, as I had several failures due to the slide moving too fast, combined with the magazine not pushing the round out hard enough. At least that's what makes the most sense to me, as the slide stopped with the round jammed at the front of the magazine. The pistol also locked back with a loaded magazine a couple of times, I do know that my grip was nowhere near the slide stop.

This 45 Super round, does seem to batter the slide pretty hard. The 24lb recoil spring is a bit tough to pull for slingshots, but manageable. Brass is ejected cleanly, and goes over my head and back about 6 to 8 feet. I've heard advice from others about a lighter spring, but the brass is tossed a good distance, I'd be afraid to go much lighter. The 24 lb spring runs with about 75% reliability for standard 45 acp ammunition, first time I've ever seen my Glock stovepipe or double feed :eek:

45 Super is also possible in other 45 acp guns, including 1911's, but it seems like a lot more skill would be required to suit up all the parts required. The Glock is like a Honda Civic, you can mod it all day long using cheap parts you can install yourself.

Is there anyone else in the 45 Super club? I know the 10mm guys like to talk about their round, which is close in performance. They'll both toss 200gr at around 1200fps, 45 Super just happens to be girthier ;)



For those whose Google-fu is weak:
en.wikipedia.org/wiki/.45_Super
acecustom45s.com/45super.htm
http://www.handloads.com/loaddata/default.asp?Caliber=45%20Super&Weight=All&type=Handgun
 
I'm shooting 230 XTP's out of a M&P45 at just under 1000 fps. Sort of halfway between a +P and a Super.

So far HS-7 has gotten all the results I need.

To find the right spring, I got several Wolff springs and started with the heaviest one and went down to where the brass landed the same distance away as it did with the OEM spring and American Eagle Ball (real scientific huh?)

After load work-up I've fired about 500 rounds through the pistol without any sort of failure. The M&P is the softest shooting 45 ACP I've shot.
 
I'm shooting 230 XTP's out of a M&P45 at just under 1000 fps. Sort of halfway between a +P and a Super.

So far HS-7 has gotten all the results I need.

To find the right spring, I got several Wolff springs and started with the heaviest one and went down to where the brass landed the same distance away as it did with the OEM spring and American Eagle Ball (real scientific huh?)

After load work-up I've fired about 500 rounds through the pistol without any sort of failure. The M&P is the softest shooting 45 ACP I've shot.

Are you using Super brass?

1000 fps is pretty decent, I wish I had my chrony, the loads I was shooting, are claimed where I found them, to be approaching 1100 fps. I hate to claim they're moving that fast without proof. Did you use 45 super data, or did you find some other data somewhere else? I'm finding that every single site is just the exact same data, except for the hodgdon reloading centre, which has barely +p speeds, so it is very conservative.

I was also shooting the XTP's, it's just what wholesale had available. I had both 200 and 230's.

Judging by how far the brass gets tossed, is pretty much the best you can do for choosing the spring. 24lbs, is the heaviest Wolff offers, and it tossed the super brass a whole lot further than the stock spring with acp.

I've only fired 60 rounds so far, but I'm comfortable with the top loads, so I'll load some more for the next time I can get out.
 
It's a Glock. The only difference being, the barrel sticks out and has holes in it. Picture a canadian legal glock 26 but upsized.

I can take any pictures anyone might like, but most around here can picture it in their heads. I'll post up some tomorrow, it's in my bedroom safe, and I don't want to wake the Wife. Even my targets aren't really picture worthy. For me, they're pretty good, about 1.5 inches at 7y, but that's not really anything worth bragging about. I'll take my chrony and camera next time I hit the range, we'll get some video and numbers, that oughta spice things up.
 
Some info for you and for myself I would go with at least a 26lbs spring...

According to Garey Hindman, son of the late Ace Hindman (final developer of the .45 Super), you cannot get enough recoil spring in the G21 to handle the .45 Super. Yes, people are doing the conversion with only a #24 lb. spring, but it must be beating the hell out of their pistols -- not to mention potential feeding problems. Garey puts in a 25 lb. recoil spring and stainless guide, Mag-Na-Ports the slide and Jarvis replacement barrel to slow down slide velocity. This prevents frame battering and slows down the slide enough for the expended case to eject reliably.

CC
 
Some info for you and for myself I would go with at least a 26lbs spring...



CC

Do you know of any companies producing a 26 lb spring for a Glock? As I stated, I can tell the gun is taking a bit of a pounding, and brass is tossed considerably further than acp with the stock spring. I believe the Ace customs site also mentions using a 32 lb spring for 1911's.

I don't plan on feeding it a steady diet of 45 Super, probably just a few magazines worth per visit. And if ever we were to be allowed handgun hunting, it's be a pretty sweet rig for up to medium sized deer. Unless bus drivers start getting wilderness ATT's approved that is, some parts of town here can be pretty wild.
 
Curtmg, your thread is great. I've just been reading about 45 Super and thinking of converting a new Norc 1911 to it. It's certainly strong enough for it. I might now have to look at it more.

Thanks for the inspiration.
 
Do you know of any companies producing a 26 lb spring for a Glock? .

When I am shooting top loads I run Wolff 26# & 28# recoil springs in my 1911 Colt Delta Elite 10mm I just assumed that they also made them for a G20/21 I just checked and they top out at 24#...

That is to bad a 26# spring would most likely fix any issues you may have been encountering with that light G21 slide.

CC
 
Looked at both the 45 Super and 460 Rowland. Think I'd rather go the the Rowland but last time I checked no Canuk sources of the kits :( Not even sure the export certs are in place for import either.
 
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