Glock vs XD

[jackmode9316]

GLOCK doesn't have a fully supported chamber in 40. Just something to think about.

What do you mean?

[Irving]

Open up your gun, take out your barrel, and drop a 9mm case into the chamber. The barrel should cover the case the same amount on all sides. In the case of the GLOCK 40s (at least 1st and 2nd gens, I don't know about 3rd and 4th gens), the curve of the ramp is cut into the chamber in such a way that the entire chamber is not supported.

Whenever you hear about "GLOCK Kaboom" it is more likely than not, a .40 S&W that has exploded because of a case failure at this point. .40 tends to be a round that is loaded near the edge of the case strength (that's why you won't find .40 in +p loads), so if there is ever a weak case, it is likely to blow out the bottom where the chamber is not supported.

I've seen a thread that had pictures of different guns and their respective chamber support, but I don't remember where it was. Probably on Arf.com though.

[OgenRwot]

There is no 4th gen Glock, the new frame/slide combo is still considered Gen 3, they call it the RTF.

Go shoot both. Decide what you like best. I'm a die hard Glock fan, I love the things. But they are both great pistols.

[OgenRwot]

GLOCK doesn't have a fully supported chamber in 40. Just something to think about.

This is a non issue. Lots of pistols don't have fully supported barrels. Think about how many 40s are out there and how many have KB'd. It got blown out of proportion because of the intrawebz. Most of the problems were caused by fatigued brass (ie too many reloads for one case) or by using lead bullets that fouled the hexagonal rifling.

[Irving]

How does fouled rifling cause the case to explode?

[SSChameleon]

Lead bullets will leave lead fouling in the barrel. If it builds up enough it will begin to constrict the diameter of the barrel. The effect over time is the same size projectile being forced down a smaller barrel. This builds pressure and can cause a KB.

[opie011]

Great info here guys but, I bought a P2000sk a little over a month ago from a member here. I actually shot several rounds thru a G27 and wanted to buy it off the guy but for now I will stick with the P2000 and its little brother(sk) for my carry choice right now.

[Irving]

Lead bullets will leave lead fouling in the barrel. If it builds up enough it will begin to constrict the diameter of the barrel. The effect over time is the same size projectile being forced down a smaller barrel. This builds pressure and can cause a KB.

Well sure, but how many rounds without cleaning would that take? 7,000? Only 1,000?


I've handled an HK P2000 and I thought it was a pretty slick gun. Good choice.

[SSChameleon]

I'm really not sure on the round count. I think it's something we should send to MythBusters to be tested! I don't shoot LRN so it's not something I think about too much, just something I've seen pop up on other forums and heard about.

On a related note, I was shooting some old 22 thunderbolt in a revolver once. After about 60 rounds I went home and cleaned it. A significant amount of lead came out with the first patch. There was enough lead that it came out of the rifling like little lead ribbons. It took me the better part of an afternoon to get that barrel clean. Since then I've stuck to copper jacket rounds in the 22 and all my other firearms.

I think it's safe to say we have strayed from the original topic. With that in mind I will just say Glock and XD are both good, reliable guns and you should go with what feels best to you.

[Irving]

It's okay that we went off topic because Opie already picked up an HK P2000.

Now, tell me more about these copper jacketed .22s. I didn't think that copper jacketed .22 existed. Do you mean copper plated?

I only ask, because I brought up this same issue (of the existence of copper jacketed .22) on another board in reference to using a suppressor. Shooting .22 is dirty as heck and cleaning cans gets to be a hassle because of it. A simple copper jacketed .22 would solve the problem.