Ammo vs Glock???

The manual will say what glock recommends. Only thing i don’t use is cast lead. I bet if you look every manufacturer will not recommend anything but factory loads.

I wouldn't sweat it, if you can buy it glocks will shoot it as good and as reliable as anyone out there. That is just me.

Yes, I have heard reports the very heavy for caliber rounds don't consistently feed in Glocks, of course they often don't consistently feed in other guns either.

I suspect anything up to 180gr (outside of an odd for a semi-auto bullet shape, and the aforementioned lead semi-wadcutters) would feed just fine. For instance, I'd probably avoid rounds like the 220gr hard cast flat nose ( https://www.buffalobore.com/index.php?l=product_list&c=160 ) and stick to something like the 180gr jacketed hollow point ( https://www.buffalobore.com/index.php?l=product_detail&p=114 ).

While I'm a 1911 fan, and don't particularly care for Glocks, I'd suspect better feeding, greater reliability, and more durability with a Glock than with a 1911.

Nothing specific, but as a rule the 40 S&W pistols seem to be slightly less reliable across the board compared to other calibers. The difference is small, but I've seen enough evidence to convince me it is real. I've never had a malfunction of any type, with any ammo with Glocks in 9mm, 45 or 10mm. Only a couple with 40 S&W.

If you are thinking primarily for hunting the 1911 will have a better trigger, slightly longer barrel and sight radius which should add up to slightly more velocity and accuracy. For defense with hunting secondary either the G40, G29 or G20 is hard to beat. Accuracy is surprisingly good with the Glocks. But the lighter weight and 15 round magazines are something to consider. I'd give a HUGE edge to one of the Glocks in reliability over any 1911. Especially a 1911 in 10mm. Traditionally they have been more problematic than 1911's in 45.

On another forum, one guy, who spends a good portion of his year in Alaska, has documented his search for a woods gun (big brown bears) that would reliably launch big penetrating bullets. He went through a bunch of Glocks (feeding/reliability problems with heavy 10mm/.40S&W/.45ACP rounds), and a variety of other large caliber semi-autos, eventually settling on the HK USP 45 as a .45 Super launcher. He is in general, a Glock fan, so he seriously wanted the Glocks to work for him.

However, he's recently done some testing with the Underwood Arms Lehigh Defense Xtreme Pentrator ( https://underwoodammo.com/product/handgun-ammo/10mm-auto-140-grain-xtreme-penetrator/ ) and now believes that round is a good choice for most guns in any caliber 9mm and up.

JTQ said:

On another forum, one guy, who spends a good portion of his year in Alaska, has documented his search for a woods gun (big brown bears) that would reliably launch big penetrating bullets. He went through a bunch of Glocks (feeding/reliability problems with heavy 10mm/.40S&W/.45ACP rounds), and a variety of other large caliber semi-autos, eventually settling on the HK USP 45 as a .45 Super launcher. He is in general, a Glock fan, so he seriously wanted the Glocks to work for him.

However, he's recently done some testing with the Underwood Arms Lehigh Defense Xtreme Pentrator ( https://underwoodammo.com/product/handgun-ammo/10mm-auto-140-grain-xtreme-penetrator/ ) and now believes that round is a good choice for most guns in any caliber 9mm and up.

Click to expand...

He would be better served with bear spray or nothing playing dead in fetal position if the bear charges him. Aren't wounded bears a lot more dangerous when they decide to charge and attack?

PabloJ said:

He would be better served with bear spray or nothing playing dead in fetal position if the bear charges him. Aren't wounded bears a lot more dangerous when they decide to charge and attack?

Click to expand...

His goal is skull penetration with a handgun round. From reading his posts, he's not a moron. He know's what he's doing. He is an experienced Alaskan hunter, and normally carries a large caliber rifle or shotgun, but uses the handgun as a back up in the event the long gun is out of reach.

Interesting thread

The only issues I have ever heard of with glocks and heavy loads are keyholeing with any 10mm bullets heavier than 200 gr.

All other concerns I have ever heard of were remedied by using a heavier rsa and/or swapping to a standard rifled barrel.

I am not aware of any factory ammo glock states to not use.

Earlier generations of .40 and 10mm Glocks didn't have great barrel support. One of the easy ways Glock got its reputation for reputation for eating anything was having a very generous throat/feed ramp relief. "Glocked brass" was definitely a thing, with a crescent-shaped bulge appearing where the brass was unsupported over the ramp cut-out. It seems they have tightened this up in recent years.

I personally do not care for Glocks. All my 10mm's are Tanfoglios; I like heavy steel guns for 10mm, particularly for max-load kind of rounds. But Glocks are certainly very workable guns for 10mm.

My 20 and 29 have too many feeding issues with 220 grain hard cast bullets. They've never had a problem with 200 grain rounds.

Buffalo Bore has the following warnings on their higher pressure 40 ammunition:

SAFETY NOTICE

"Some pistols chambered for the 40 S&W cartridge may not provide complete support of the case head. If this condition exists, normal pressure loads such as those shown here can cause the case wall to bulge or rupture at the unsupported point. Contact your firearm manufacturer to determine if your pistol completely supports the case head, or ask a gunsmith to inspect your pistol before using it with ANY ammunition. It is the gun owners responsibility to know his firearm and its capabilities and limitations."

40 S&W WARNING

"This data is intended for use in firearms which fully support the cartridge in the chamber. Use of this data in firearms which do not fully support the cartridge may result in bulged cases, ruptured cases, case head separation, or other conditions which may result in damage to the firearm and/or result in injury or death of the shooter or bystanders."

Glock happens to chamber their 40 S&W pistols without a fully supported chamber and both of those above safety notices are likely aimed at Glock. I know of no other 40 S&W handguns being sold in the US that don't have fully supported chambers. If you really want to shoot our 40S&W ammo in your Glock, have an after market barrel that uses a supported chamber, dropped into it. This is a fairly common practice and will give you the safety margin needed to fire our ammo in your Glock. It will also likely give you more velocity than the factory Glock barrel. I personally own two Glock Model 23's. Both of mine are going to get after market barrels dropped in so that I can use this excellent ammo in them. The issue of Glock pistols not having a fully supported chamber is with the 40 S&W cartridge only, not 45 acp, 10mm, 9mm or 380 auto. While Glocks chambers are not fully supported in any of those calibers, only the 40 S&W brass is weak enough in the web for it to be a safety issue. I REPEAT, only the 40 S&W is a safety issue with chambers that are not fully supported. You do not need to be concerned with this issue when using our 45acp+, 10mm, 380 auto+P or 9mm+P or +P+ ammunition in Glock pistols.

PabloJ said:

He would be better served with bear spray or nothing playing dead in fetal position if the bear charges him. Aren't wounded bears a lot more dangerous when they decide to charge and attack?

Click to expand...

This is the current anti gun pro environmental posture seen in a lot of outback writing.

Hunting in bear country is best approached with the same attitude as patrolling behind enemy lines. You never know when you might be ambushed. Hence, guides carry adequate rifles and backup pistols of the larger calibers. That's been the answer in Alaska for generations. Bear spray to this day has no guarantee of success or body of evidence to prove it will.

Show me dozens of incidences where men have sprayed bears and they turned tail and ran. Considering that the developers of the "bear proof suit" have yet to achieve 100% success I'm not volunteering for it.

Take enough gun.

The Glock 40 in 10mm is a nice handling gun. Since it's s Glock it should shrug off a lot of the weather and dings that woods walking/stalking seems to mar up much nicer polished or finished guns. With the 6" barrel and long slide It's big, and a bit top heavy unloaded, but I haven't fired one so I am not up on the specifics of how it feeds with a variety of bullet weights.

I will say our duty issued ammo in 9mm is the Win SXT 127 gr +P+, and the Glock 19's we issue eat them up with no issues. (My personal G34 9mm duty gun does, too).

I have seen recently that the sheriffs office (who handles our ammo issuing/armory chores) has started issuing 124 gr +P Win SXT ammo. I asked why, and was told that the +P+ was being accused of voiding warranties on guns for those folks who carry guns other than Glocks. Glock apparently has no issues with this ammo in their 9mm guns.

I have no idea if it's a true reason or not. I will say that after 11 years here, with the same duty ammo issued every year (that has had great results in OIS incidents), there had to be some reason for the sheriff to switch.

Good luck on your quest, you seem to be on a good track to find the gun that will meet your needs.

TomJ were you running OEM barrels with your 20 and 29 when you had feeding issues? I've been considering buying a conversion barrel for my 30SF to run 10 mm for bear country. It would be a non-Glock rifled barrel, probably Storm Lake.

As far as +P I've been running Hornady critical duty 135 grain +P for a couple of years and my 19 loves it. No hiccups.

For 10mm, I'd be into a Sig P220.

burk said:

TomJ were you running OEM barrels with your 20 and 29 when you had feeding issues? I've been considering buying a conversion barrel for my 30SF to run 10 mm for bear country. It would be a non-Glock rifled barrel, probably Storm Lake.

As far as +P I've been running Hornady critical duty 135 grain +P for a couple of years and my 19 loves it. No hiccups.

Click to expand...

They are OEM barrels. I solved the problem by used 200 grain ammo. I'm not sure if an aftermarket barrel would help. Maybe someone else can answer that.

I gave away my "highly frangible" defensive ammo. (sorry, can't remember the brand) The recessed jacket on the front had an edge that caused it to hang up and not feed correctly. I have heard that this ammo has been problematic in other brand pistols as well. I REALLY LIKE the Sig Sauer .380 ammo. My Glock is very, very reliable....!!

Glocks are completely safe with any SAAMI spec ammunition. Their chambers have traditionally been as loose as SAAMI specs will allow, but Glock, unlike Buffalo Bore, actually abides by industry standards. There is SAAMI specs for +P 9mm and .45 ACP, the 10mm Auto Glocks are among the only guns in that clambering that have never had a problem knocking themselves apart and that cartridges happens to run with about 50% more pressure (37500 PSI vs 23000 PSI) than even +P .45, and there is a +P+ SAAMI spec for 9mm. Glock will be perfectly safe for all of it. In fact, when Mike McNett worked up his famous 10mm Auto loads getting DoubleTap Ammunition off the ground, he used a factory stock Glock 20.

There is no industry standard for +P .40 S&W. No pistol on the market is designed to take the .40 S&W loaded to more than 35000 PSI. But disingenuous ammunition manufactures like that Buffalo Bore garbage load ammo outside of industry specs and then blame any problems on the handgun and so-called "chamber support." It's BS. I consider Buffalo Bore to be commercially available gun show reloads and wouldn't use that crap in any gun of mine if it was the last ammunition left on post-apocalyptic earth.

I run my Gen III Glock 20 with stock factory barrel and 200 gr FMJFN and XTPs @ 1250 fps. I have a stainless guide rod and 20# ISMI spring, which I recommend for any full power 10mm, esp if you want to slow the slide down enough to actually recover your brass. Other than that a good set of sights is about the only mod any Glock really needs.

theboyscout said:

Are there any ammo brands, weights, +p, +p+, or other bullet companys and there prescribed uses that Glock can not load or handle? I have heard guys say that glock can not handle some of the more powerful brands of bullets like buffalo bore, critical defence, double tap, and some of the other rounds ment for big things. I shoot a glock 23 gen4 now but thought about getting a glock 40 in 10mm for carry/hunting with a chest rig.

Are there any rounds it can not handle or shoot?

Would it be better to use a different gun like Dan wesson?

Those are really my 2 picks for 10mm hunting/defense in the woods.

Click to expand...

This information is not covered in Glock's Manual's. I had to go to Glock's website to find the following:

Can I use +P and +P+ ammunition?
Glock suggests using ammunition that is manufactured and meets SAAMI or industry specifications. If you are not sure the ammunition brand or type you choose is safe for use, call the ammunition manufacturer and ask if the product meets SAAMI guidelines before using it in you firearm. Some +P ammunition meets these guidelines, +P+ normally does not. This ammunition may generate a higher pressure over the standard loadings, and may shorten the component life of your firearm.