.40 bulge bust or not?

[Red9]

If I shoot a glock. Do I really need to bulge bust?
Just curious. I feel it works the brass too much. I just resize with a Dillon die press and go. It all plunks fine. So if its glocked brass, only being shot in glocks why bother overworrking brass?
I do run my 10 mm brass tho. I noticed under stout loads, 15 gr blue dot, I get slight bulges.

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[robert101]

I think you answered your own question. If it reloads and functions fine in your guns, why do anything different? I don't add steps that have little added value. For plinking or target rounds I do the minimum in case preparation and cleaning.

[rg1]

Don't have any swelling-bulge issues with my Glock 23 or a Beretta carbine rifle. But buying once fired brass or picking up fired brass from the range and you may run into several cases fired in large chambers that don't size enough near the base. Don't think using my Redding Gr-X carbide push thru die oversizes the brass. Makes me more confident in my 40 S&W reloads and wouldn't load the straight walled 40 brass without running all cases through the GR-X die. Especially shooting pick-up and once fired cases. 40 S&W is the only caliber I load that needs a push through die. But if you plunk test every round then you probably will have no problems. My sizing die formed such a radius where the die stopped and even displaced brass material that I end up scrapping lots of bought or picked up brass that is totally safe and ok to load. The push through die just sizes the base of the case where your sizing die doesn't touch.

[JagerDog]

As to over-working brass, are you experiencing or expect you would experience some sort of case failure on .40 S&W cases?

I don't think I've had a piece of pistol brass fail other than at the mouth.

Whether you want to do this process is up to you, but I wouldn't worry about brass lifespan as a result.

[MrElectric03]

I see no issues with it over working the brass. However, not all glocks cause the buldge. My rule of thumb is when I buy .40/10mm brass in bulk from someone, usually in large quantities...I will run them through the Redding grx die. Brass fired from my guns(some use aftermarket barrels with fully supported chambers) it gets sized and loaded as usual.

[wbunning]

I see no issues with it over working the brass. However, not all glocks cause the buldge. My rule of thumb is when I buy .40/10mm brass in bulk from someone, usually in large quantities...I will run them through the Redding grx die. Brass fired from my guns(some use aftermarket barrels with fully supported chambers) it gets sized and loaded as usual.

[Red9]

And yes, i was just being a bit lazy Figured if i fired them out of a glock stock barrel, then if its a bit smiled it would be ok. My dillon dies dont seem to go far enough to get than little bell out. And ya im too lazy to run them all through the resize die. I am using the lee fcd without the crimp to get the bulge out of my 10.

The glocks, g35 stock barrel, g22 rtf2 with kkm, g23c stock barrel.

on a different note, i noticed that cast b's lead the glock barrel. CB sized to .401, powder coated, 4.7 grains titegroup, or w231.

dino

[wbunning]

on a different note, i noticed that cast b's lead the glock barrel. CB sized to .401, powder coated, 4.7 grains titegroup, or w231.

dino

I powder coat my cast bullets. Zero leading in my glocks using Storm Lake barrels.

[Red9]

I powder coat my cast bullets. Zero leading in my glocks using Storm Lake barrels.

What powder and charge? If you don't mind. Even my kkm gets some streaks.

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[wbunning]

What powder and charge? If you don't mind. Even my kkm gets some streaks.

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[Red9]

Thanks. I thought maybe the tg was too hot. So I switched over to w231. Still working out the kinks.
Maybe ill go back to tg.

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[someoneeasy]

I shoot my cast projectiles that I powder coated through my stock Glock barrel, no leading at all.

[Dragginpanda]

I have Gen 3 Glock 22 and a Gen 3 Glock 23. I don’t bulge bust the brass.

[9mmepiphany]

Budged cases may or may not make a difference. Your chances are better if you shoot them in the more generous chambers of most Glocks.

When I use a Redding G-Rx die, I'm getting about 10% of the cases with severe enough budging that it required extra pressure to push the case through. This is with cases picked up at local matches and a lot of once-fired cases from agency training sessions

The number of budged cases from GSSF matches run a bit higher, but less than 20%.

I run them through a G-Rx die because most will be used through a Beretta 96 or a 1911

[jumbopanda]

I've never had an issue with reloads not chambering in Glocks after about 5000 rounds. I have had to use a bulge buster to get some rounds to chamber in a STI 2011 though. The difference in chamber diameter is quite substantial.