Glock 30s with 10mm conversion?

[dpop24]

I have an open spot on my CCW and getting ready to buy something new to fill that spot. I was completely set on a G30s, but have recently started thinking about the G29 for the few times a year I'm camping or hiking.

Then it occurred to me, why not get the .45 and just use a conversion barrel/mags when in the woods. This way, I could use .45 for CCW and for practice and swap in the 10mm for the woods. (Not trying to start a caliber war, just trying to find hands on experience with shooting 10mm conversion through your .45 ACP Glock).

I see that several companies offer .45 to 10mm conversion barrels but they all list the G21 and G30, but I specifically want the G30s. Are there any concerns with shooting full power 10mm loads from the G30s with slimmer/lighter slide? Anyone doing this conversion? I guess I could also just get the G30s and pick up a G30 or G29 slide to be used with the 10mm barrel.

Edit: I found a post on Glock Talk that states that the conversion and even factory G29/G20 barrels do not fit in the G30s slide, so the only option is a complete G29 upper. I guess that answers my question! If anyone is using a 10mm conversion in your .45 ACP Glock, I'd still like to hear your success stories.

[Bill Steele]

I am a big fan of the 10, having 5 different guns chambered in that caliber, but, I think if I were you, I would just pick up some Underwood 45 Super for woods carry. It will shoot fine from your 30S and give you similar Muzzle Energy to the 10mm with far less hassle, and a bigger hole to boot.

[Slixxster]

I have a g30 with stormlake 10mm conversion and it shoots fine. I carry it as my hunting sidearm. I load my rounds pretty hot and everything functions fine. Only thing I upgraded was the recoil spring.

[Carcassonne]

I am a big fan of the 10, having 5 different guns chambered in that caliber, but, I think if I were you, I would just pick up some Underwood 45 Super for woods carry. It will shoot fine from your 30S and give you similar Muzzle Energy to the 10mm with far less hassle, and a bigger hole to boot.

Will it work in a stock Glock barrel?



.

[Deimos887]

^ yes, was designed to do so... basically beefed up .45acp brass, however you'll certainly need a heavier weight recoil spring.

[Bill Steele]

Will it work in a stock Glock barrel?



.

Sure, I shoot 45 Super out of my G21SF, G30SF and 1911's all the time.

[Bill Steele]

^ yes, was designed to do so... basically beefed up .45acp brass, however you'll certainly need a heavier weight recoil spring.

Depends. The multispring RSA's on the newer G29/G30 seem to keep the slide off the frame pretty well. With my G21SF and 1911's I do go up in spring rate, to 22lb on the recoil and a heavier main spring for the 1911.

In any case, you can try it with the stock RSA. If you start seeing some battering on the receiver right in front of the slide lug or have any feed issues, then a heavier RSA might be needed.

[BHPFan]

Edit: I found a post on Glock Talk that states that the conversion and even factory G29/G20 barrels do not fit in the G30s slide, so the only option is a complete G29 upper. I guess that answers my question! If anyone is using a 10mm conversion in your .45 ACP Glock, I'd still like to hear your success stories.

I actually did the opposite:
I bought a G29SF and a G30s upper. I can shoot 10mm with the original G29 upper and .45ACP with the G30s upper and G30 mags.

[Rickrock1]

....

[dpop24]

I am a big fan of the 10, having 5 different guns chambered in that caliber, but, I think if I were you, I would just pick up some Underwood 45 Super for woods carry. It will shoot fine from your 30S and give you similar Muzzle Energy to the 10mm with far less hassle, and a bigger hole to boot.

Interesting! I had never even heard of .45 Super until your post. Now you guys are making me think it might be smarter to go with a G30 with the fat slide so I can shoot .45 ACP, 10mm, or .45 Super.

I really would prefer the slim slide of the G30s. Are we confident that the 30s will handle the occasional .45 Super? I've found lots of info on guys shooting it from the G21 and G30 but no success stories from a G30s. This sounds like the best plan!

[Bill Steele]

Interesting! I had never even heard of .45 Super until your post. Now you guys are making me think it might be smarter to go with a G30 with the fat slide so I can shoot .45 ACP, 10mm, or .45 Super.

I really would prefer the slim slide of the G30s. Are we confident that the 30s will handle the occasional .45 Super? I've found lots of info on guys shooting it from the G21 and G30 but no success stories from a G30s. This sounds like the best plan!

Maximum SAAMI pressure for 45 Super is 7K PSI less than what people run in their Glock 27's, so pressure isn't going to be an issue in your G30s. The lighter slide may mean a high enough slide velocity that a heavier recoil spring may be called for as Deimos887 pointed out. After a box or two, if the gun feeds fine, field strip the gun and look right in front of the front slide lug where the bottom of the slide in the front will impact the frame if you are over driving the slide. If there is no battering, you are good to go. If you have feed issues or the lower front part of the slide (just below where the RSA is engaged) is hitting the frame, then a 22-24lb RSA should address that issue.

[dpop24]

Update: I bought a 30s yesterday but need to wait 30 days for the stupid 1 in 30 rule. Thanks for the help!

[Bill Steele]

Nice. The gun, not the wait..

[TheExiled]

Has anyone had experience with running a conversion in a carry gun? Re: legality issues/defending yourself? I just know in this state they can and will hit you with anything and see what sticks, I could just see in a SD shoot in court: "Sir, why did you convert your G30 to run 10mm? Was the .45acp not heat-seekingly, cop killy, innocent-seeking enough for you?"

I have a gen 4 G29 in the mail btw

[Bill Steele]

I can't imagine a logical explanation for why one would do it. For something as important as your SD weapon, why would you not want the most reliable and tested platform you could possibly get?
Not jamming you for asking the question, just giving my opinion on conversion barrels in a gun you are using for defensive purposes.