This is posted on another thread but I thought I would start with this previous info.
I bought a lone wolf barrel for my 10 it consistently had light primer strickes while my factory barrel shot perfectly. I suspected that the chamber was cut to long. I sent the barrel back to them they refunded my money minus 15% restocking fee and shipping, I have ordered a kkm barrel will post how it goes when I get it.

Well got the KKM barrel in and guess what no light strikes, Lone Wolf insisted there was nothing wrong with there barrel, what a load of Hogsh*t! If my factory barrel worked perfectly and the KKM barrel worked perfectly, and I was lucky to get 2 to fire out of a clip on the Lone Wolf barrel the rest were light struck. They should have refunded all my money plus shipping for sending me that crap. Enough b*tching. This KKM barrel rocked it. No feed jams. Accuracy was awesome, came close to cutting a 6 inch sapling in two from 30 yds of hand with two clips of ammo (180 FMJ Masters ammo). I could not be happier with this set up. I think the barrel even looks better in the gun.
Lesson learned; cheaper in this case defintley not better.

Thanks for the write up.
I have been thinking about a LW or KKM 6" for my G20 at some point. I will keep your experience in mind.

Good deal, haven't heard any issues with Lone Wolf as they are reputable but I guess everyone can make a lemon. Ultimately the only thing I find is my Glocks are all stock except for the night sights.

I have always had the same philosophy, but the idea of being able to run the hot 10mm stuff without being so tough on the brass appeals to me.

Did you check the chamber yourself to see if it was cut long or just assumed.
My LW 20 barrel has never missed a lick...neither has my LW22..

I never had any issue with my lone wolf 6" barrel either.

OEM barrel shot perfect, KKM barrel shot perfect. What ever the problem was I do not know for sure. I do know one thing. "Drop in fit" means "Drop in fit". The Lone Wolf missed it.

Well, whoever brought these KKM barrels to my attention...curse you!

I'm going to get the 6" barrel for my G20 with the 6" slide, and I'm retiring the Lone Wolf barrel. Additionally, I'm going to get the standard length one that has the compensator on it for my other G20. Gonna cost me $450.00 after shipping.

Thanks a lot.

I was shooting some old semi-wad cutters in my G20 that I outfitted with the 6" slide and the 6" Lone Wolf barrel. I had a lot of fail-to-feed malfunctions. The slide, which has a 20lb recoil spring, would strip the round off of the top of the mag, then it would get stuck trying to pivot the round up and over the feed ramp and into the chamber. It pinched the round on the bottom edge of the chamber and the top of the chamber about a third or half way in. That Glock has been retired until I get the KKM 6" barrel. The rounds were old, and the brass was rough, but it needs to feed reliably or I have no confidence in it.

Others may have had good experience with LW. Mine was not good at all. Wish I had not tried to have taken the cheapest way out to begin with. IMHO KKM is well worth the few extra $$, to get a precision, confidence building, piece of engineering.
Thanks KKM. In my book you certainly do "Rock"

KKM has been good to me. I don't have experience with LW.

The extra chamber support may adversely effect feeding of some bullets like Magnumdood mentioned.

I have been shooting 180 grain truncated cone FMJ, has fed flawlessly. A very wide nose lead bullet may encounter some problems, have not tried them. I imagine with kkm customer serivce they could get it to feed reliable if you sent them the barrel and bullet combo.

I'll be shooting the Underwood 200gr HP/1250 fps in both of my G20's. Someone on this forum was picking up an additional 125 fps with the 6" barrel. A 200 grain HP scooting along at 1375 fps is some serious KE...for a carryable/concealable, semi-auto pistol.

Sure, my S&W 500 with a 6" barrel will get a 385 grain HP moving 1900 fps easily...it'll do 2000 fps if you want to put up with the recoil and muzzle blast. But the S&W 500 is not concealable, and after several hours of anything but hunting, I doubt many would say it was carryable.

I have a Lone Wolf barrel on a Glock 26.... Wanted to shoot lead reloads..... Works fine.... The engraved wolf logo is tacky but the price was right...

I have more recently spent time researching a Glock 10 MM ... Lots more folks seem to be complaining about LW QC issues and poor customer service . If I get another aftermarket barrel it will not be a Lone Wolf.....

My LWD 9mm conversion barrel for my G22 (40 S&W) has been great so far. To bad yours didn't work for you. You seem to have the setup you want now.

Good luck and good shooting, NYH1.

I paid them $2 extra to put the Lone Wolf logo out of sight
They burned it on the bottom...

How long is that tube?
Looks longer than 6"?

Just a 6'er, have a couple friends that said it looked odd. Did a little accuracy test off a sand bag at 35 yds. shot a 3 shot group you could cover with silver dollar. I can't get enough of this gun. I have 1911's and I have magnum revolvers, but when you combine the two, and have a magnum auto. that shoots that good, kinda of addicting!:)

very nice,
after looking at mine, it is because I am used to seeing the compensated barrel that makes your's look "different"


I know what you mean about the "magnum" auto.
That's what sold me on the G20.

Went back to the range again today to make sure my turkey gun was still sighted, thought I would let the 10 tag along. It turned out to be 32 yards instead of 35. But I am still happy with the group I shot, with this economy the silver dollar turned into a sliver dime, thats a good thing:)

Hoo hoo! Nice shooting.
If my KKM barreled G20 does half as well, I will be very happy.

I too have a Glock 20 and have been looking at both the Lone Wolf and the KKM. Did you find any info on the KKM having issues with some of the hotter full house loads?? I started my search for a new barrel with KKM in my sights until I read they did not like some of the hot hunting rounds?? Seems some of the ammo companys are suggesting the Lone Wolf....?? I'm really leaning to the KKM..

The ammo I am using is "Masters" ammo which was loaded for Kentucky State Police back when they carried the "10". It is loaded for both 180 grain FMJ (Truncated Cone) and the 180 grain Hydrashok rated for 1300 fps from a 5 inch barrel. Have not chrono'ed it yet, but from the recoil I can imagine it is close. As for accuracy the pic I posted of the 3 shot group is probably the best group I have evered fired from an auto at that distance. I have yet to shoot cast bullets out of it, so cannot attest as to how they fly, but I have yet to see a barrel that has conventional rifling shoot copper jacket bullets that good and not shoot a cast bullet well.

Man I hate these 10mm threads and that little bitty group doesn't help.

I just keep thinking what a handy field gun a Glock 20 would be.

Great shooting. Do I understand correctly that this was a commercial load and not a handload?

The best of my knowledge is that "Master Ammunition Company" loaded these rounds for KSP and KDFW. But also manufactured other rounds for other state Law Enforcement Agencies, such as Indiana, Tenn., and Ohio.
The Company is now defunct and I am not sure where these LE's get their supply.

I think one thing that may have kept them afloat so to speak was that 10mm ammo was kinda hard to come by, and state agency contracts probably kept them going. Now that everyone uses the 40, no financial benefit to look to someone like Masters. Again a lot of this is speculation from what I have gotten off the internet, and other sources.

Thanks for the info. Regardless of the load or manufacturer, you did your job behind the trigger excellently.

I'm planning on putting together some 165 Gold Dots today and see how I can do. I haven't been shooting for quite a spell after a couple of shoulder surgeries, and it shows at the range. Still, nice to be getting back to it.

+1 on the info...good to know.