Need some schooling on reloading for Glock20

[12yak]

I've been pretty busy reloading a variety of calibers for over a year but I'm venturing into a new area... reloading for a Glock, and also for a powerful cartridge, the 10mm. I bought my son (30) a Glock 20 for his birthday so I want to start reloading for him since factory 10mm can be pricey. I discovered after the fact that "Glock Bulge" may be a problem with reloading for Glocks. Not sure if that's a problem with early Glocks, specific models, or all Glocks. Can you guys provide some guidance on reloading for this situation? Given that the 10mm (and it's lower power 40s&w cousin) have a lot of energy, I don't want to set him up for a problem. TIA!

Background: I load 5.7x28, .380, 9mm, 38 spl, .357 mag, .45, .223, .308, 30-30, & 30-06... but none of it for Glocks.

[trailtundra]

You can remove that bulge before sizing.

I use this one from Redding. (link to midwayusa)

This is what happens when you size bulged brass:
photo (4).jpg

[robnletti]

Not sure if this is the problem you're talking about:

http://www.youtube.com/watch?v=w9sZIgabfpA

If so, you need to purchase a LEE Factory Crimp Die.

[12yak]

You can remove that bulge before sizing.

I use this one from Redding. (link to midwayusa)

This is what happens when you size bulged brass:
[ATTACH]324941[/ATTACH]

Thanks Trailtundra! I got the carbide version. Assuming that I take care of the bulges with the sizing die, are there any other reloading issues to be concerned about for the Glock20 in particular other than staying between min & max load in the manuals? Because the chamber is unsupported, do I need to stay well below max? TIA

[Spyder]

I would recommend a 6" KKM barrel. It sticks out a bit past the end of the slide, but it looks good. Adds velocity, and negates all of the worry and controversy about glock bulge and lead ammo. It's not much more expensive, and far far easier and faster than running each piece of brass through another die to get rid of any bulge.

I'm flinging 135g Noslers at dang near1700 fps out of mine, with 800x. It's awesome.

[Spyder]

Also, if you want hotter published loads, find an older Sierra manual.

[Carcassonne]

You can remove that bulge before sizing.

I use this one from Redding. (link to midwayusa)

This is what happens when you size bulged brass:
[ATTACH]324941[/ATTACH]

What reloading dies do you use for the 10mm: The ones that were used to size the brass in the picture?

I have Hornady dies, and I have sized 40S&W bulged brass, and they didn't look like that. I am guessing the 40S&W bulged brass is similar to the 10mm. I also have the Lee factory crimp die.



.

[trailtundra]

What reloading dies do you use for the 10mm: The ones that were used to size the brass in the picture?
.

Redding 80253 A Series die set.

[12yak]

Just to get a little more life out of this thread .... I got the G-RX and used it on some 40sw & 10mm range brass and it's a really nice product. I also saw that it also works on .357 but it's not made for any other calibers, which puzzles me since you can buy Glocks in 9mm and other sizes. I'm assuming that all Glocks have the same unsupported chamber design so why isn't bulge an issue with those? (That's an assumption on my part. Maybe Redding just hasn't gotten around to producing those dies yet.)

[Dark Mod]

I kept the stock barrel and I like it just fine, if I were to replace it I would definitely go longer, like 6" or something.

I use range brass and its never let me down. There is some bulging but it normalizes through sizing and cycles fine. Theres always a little bulge at the base that never quite comes out but it hasn't caused me any problems.

For Bullets I use 180 grn Xtreme HPCB (Heavy plate concave base). the flat points seem to work great for me and I push these out around 1300 fps or so. Regular plated bullets would probably work fine, but I intend to make a carbine and get another few hundred fps out of them eventually.

For powder I have experimented a lot, I went through blue dot, longshot, 800x, and a couple others but those are the ones that yielded the best velocity. Out of them all Longshot has worked best for me and I have worked up a very nice load that slightly exceeds published data so I wont tell u the charge.

10mm has brought me a lot of joy, there was a lot of experimentation and im very pleased with the results. Recoil is a bit stiff, but if that bothered me I would shoot .40.

Just an aside: factory 10mm is a joke, Ive made middle range .40 loads that were more powerful. Underwood and buffalo bore make some stout stuff but its expensive.

[adrenaline]

I've been shooting/reloading my Glock20 / 10mm with the max load in the Lee book (Longshot 9.5 grains with 180gr flat nose jacketed projectiles).

Just like Dark Mod said, I decided to get the longer barrel for two reasons:

1. Prolong life of the brass
2. Get more FPS out of it (why not right)

I just looked at some of the brass I just shot this weekend and while there is a very slight bulge (KKM precision 6 inch barrel). It is not as pronounced as with the stock barrel.