Machining of a 9mm Buldge Buster

[Rsadams]

I could be over overthinking this to some degree, mainly cause of all the WARNINGS you see about using reloads in glock. Even though my chamber appears to be almost fully supported there is just a little space on the bottom of the feed ramp and it’s almost nothing. Thoes case sizer are awesome but I don’t shoot thousands of rounds of 9mm. My main concern is I get range brass and the idea was to make them all uniform not necessarily for function.

The bulge problem in Glock was fixed a very long time ago and was mainly on the .40 cal.. I have fired thousands and thousands and thousands of reloads through my 9mm Glocks without a single bulge or problem one.. The only bulged 9mm I have seen in years was over powered handloads fired through mainly cheap small pistols who's chambers are not great to start with... As far as shooting reloads in Glock the only problem I know of is shooting lead bullets in them because of the poly rifling , although I know guys who do they just clean them when done shooting to keep any lead from building up.... There's is not a firearm made that comes suggested to shoot reloads in them , as a matter of fact any gun manufacturers will void the warranty if you tell them you were and there was a problem... They don't want you damaging the gun because you make a mistake and call them... It's one variable they can control...

 

[Shooting in the wind...]

The bulge problem in Glock was fixed a very long time ago and was mainly on the .40 cal.. I have fired thousands and thousands and thousands of reloads through my 9mm Glocks without a single bulge or problem one.. The only bulged 9mm I have seen in years was over powered handloads fired through mainly cheap small pistols who's chambers are not great to start with... As far as shooting reloads in Glock the only problem I know of is shooting lead bullets in them because of the poly rifling , although I know guys who do they just clean them when done shooting to keep any lead from building up.... There's is not a firearm made that comes suggested to shoot reloads in them , as a matter of fact any gun manufacturers will void the warranty if you tell them you were and there was a problem... They don't want you damaging the gun because you make a mistake and call them... It's one variable they can control...

I shoot my own cast powder coated bullets in mine and they shoot great! No fouling whatsoever.

 

[piie]

My comment relate to a 40S&W, but I think the principle is the same:
I also tried a bunch of things - including getting the Redding push through die to remove the bulges on my cases - I wouldn't have bothered if it weren't for the fact that the bulges causes chafing of brass when I tried to size the cases on a "standard" Lee die set. I then picked up a Lee carbide set, and never needed anything else since - sold the push through die and container contraption...

 

[Shooting in the wind...]

Yea I wanted to get a lee carbide die but I refuse to pay the price they are going for these days.

 

[Rsadams]

I shoot my own cast powder coated bullets in mine and they shoot great! No fouling whatsoever.

I shoot mainly Berry's bullets in mine because there normally cheap... Although I do find the 1/10 flyer in them with the poly rifling... Glocks are not known for liking lead bullets , from what I understand simply changing the barrel to a normal rifling barrel and that goes away which is what alot of people do... Stay with the coated bullets and you will be fine...

 

[Uncle Ed]

I bought 250 once fired military Winchester 9mm cases. I then ran them through a Lee Makarov factory crimp die. All I accomplished was reducing the rim diameter on 40% to 50% of these cases. Meaning none of these 9mm cases bulged above the extractor groove and all I did was uniform the rim diameters. The manufacturing tolerances allow the rim to be up to .003 larger in diameter than the base dimeter.

In my opinion, on range pickup brass or if buying bulk brass the Lee Makarov FCD will make all the cases uniform. "BUT" Lee no longer recommends using the Makarov FCD on 9mm Luger cases. Your barrel will tell you if the cases might need to be run through a Makarov FCD if you are using range pickup brass. And if the cases are only fired in your pistol any type bulge buster type die could be overkill.

NOTE to the OP, the bulge you see could just be your cases are at the minimum diameter fired in a large diameter fat chamber. Meaning what you are seeing is normal for that brand of brass.

 

[Richard Jones]

Lee U die

 

[PigButtons]

It's not 9MM but I have the Lee push through die for 380acp and it works as advertised. I've never had the need for one in 9MM so I can't speak to that round specifically. My Kel-tec P3AT would leave a bulge that needed to be addressed If I wanted to shoot the reloads in my Sig Sauer. Easy to use and very effective.

 

[divingin]

My main concern is I get range brass and the idea was to make them all uniform not necessarily for function.

If you're using mixed brass they're not going to be particularly uniform anyway. In any case, uniformity won't do anything for you if they don't function.

I'd say that if you aren't having problems chambering the stuff, you're way overthinking it.

 

[Rollsizer]

Rollsizer

The rollsizers have a few advantages over the traditional push through bulge busters.
1. The cases can be sized back to factory and not limited by the rim. In most cases the rim is larger than the base.
2. The biased or one sided bulges are forced concentric to the rim.
3. Rollsizers work on the base section of the case the sizing dies cannot reach. The case base is blended into your sizing die.
No more clickers or failures to feed / extract due to bulged cases. Look up rollsizer.com

 

[tommeboy]

Glock fixed the unsupported chamber a long time ago. Some of the cheaper S&W guns have a lot larger unsupported chamber than any glock ever had. Le stopped selling the 9mm version as there was too many case head failures going on. It has been several years since lee sold the MAC die in the kit.

Myself, if I see any case with a bulge i throw it in the scrap bucket. 9mm is just too common and free to even mess around with.

 

[markm87]

I agree with the "not an issue" replies. I'm in the middle of this with my 40 cal Glock ammo loaded to match factory ammo velocity. Looks bulged pretty good. But regular Dillon Carbide resizing works just fine for thousands of rounds now.

I to remember the "Glock Rx" die from back in the day. It lead me to believe that you had to have an extra step in reloading to use Glock fired brass. Not the case anymore.

 

[precision1]

Well y'all are responding to old post.....

Also lee makes a bulge buster die . which I don't use

I've sized literally thousands of 9mm and 90% fit my case gauge.mostly rough rims from being stepped on .just chunk em dirt cheap

If you push a little most drop in and would probably fire anyway

Have thousands more don't expect anything different

All once fired range brass off the Internet....and public range pick ups

Maybe I'm just lucky.lol idk

Also I see very few bulged brass in a huge variety of mixed stuff off interwebs.its just not a problem.
Like always chunk the junk