10MM ammo & G20 questions/advice

[brocksw]

I did a ton of research on Bullets when I bought my glock 20 in 2012. What you need for deep straight line penetration in a hardcast bullet is an optimum meplat diameter. There are only two bullets out there that offer this. One and the original is the bearclaw. The other is the double tap hardcast gas checked. I am not affiliated with double tap but feel very strongly about the choice of bullet if you need the bullet to do the job it was purchased for. Buffalo Bore and Underwood Bullets have more than the meplat working against them. Pretty sure BB is unchanged since I did my research and I cannot confirm on Underwood. In my opinion the DT 230 is too heavy to get good velocity with. In my stock G20 the DT 200 grain hardcast WFNGC is very accurate and reliable. I have cycled a few hundred rounds through my gun over the last few years and have had zero issues. I know one of the issues with the underwood was terrible lead fouling almost smearing because it was not gas checked that in addition to the non optimized meplat eliminated it from my decision. I run a 3.5 pound trigger connector and polished the surfaces of the trigger group. I also added a stainless recoil spring rod and a 22 or 24 pound spring. Not sure what you can do for the spring now with the gen 4.

Was thinking about running the 200 gr Bears... Been a while since I looked but I thought they had a wider meplat than the Dts. Sounds like you are higher on the Dts though?

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[doverpack12]

Was thinking about running the 200 gr Bears... Been a while since I looked but I thought they had a wider meplat than the Dts. Sounds like you are higher on the Dts though?

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I don't know for sure which meplat is wider but they are very close and the double tap bullet was basically copied from the bearclaw. I run the double tap because I haven't gotten the time to order bearclaws and reload my hardcast rounds yet. I would have absolute confidence in either bullet doing the job if placed correctly.

 

[brocksw]

I don't know for sure which meplat is wider but they are very close and the double tap bullet was basically copied from the bearclaw. I run the double tap because I haven't gotten the time to order bearclaws and reload my hardcast rounds yet. I would have absolute confidence in either bullet doing the job if placed correctly.

The leading issue has always concerned me... Seems like some say they never have an issue with it, which I find odd. Both the beartooth and the DT are gas checked so like you say, no reason to think either wouldn't suffice in that regard.

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[Tastybearmeat]

Double tap and trijicon night sites on mine. To be honest a 10mm is light no matter what bullet you choose for the bears on kodiak. Hopefully you won't need it. Good luck on the hunt!

 

[doverpack12]

The leading issue has always concerned me... Seems like some say they never have an issue with it, which I find odd. Both the beartooth and the DT are gas checked so like you say, no reason to think either wouldn't suffice in that regard.

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You will get some faint lead streaks in a few of the grooves of the octagonal barrel. I only shoot a magazine or two before cleaning. The leading and Stock barrel pressure issue will happen if you shoot straight soft lead bullets a lot. If you clean after shooting a reasonable number of lead bullets there is no concern. The gas check and hardness significantly decrease the amount of lead and it is not hard to remove almost more like powder residue.

 

[kodiakfly]

I carry DT and I really like the 24/7 XS sights on all of my Glocks. Fastest sight acquisition for me.

I like the 10mm round. Is it best for bear? Probably not, but what is? .375 H&H? .416 Rigby? 12 ga? I know very competent outdoorsmen that carry 9mm for bears and are content with that. In that regard, I say something is better than nothing. And that "something" needs to be something that you can and will carry and something that you can and will shoot. I can carry a Glock in kydex more easily than I can carry a .454 SRH. That, and I seldom carry a gun for bear. Only a couple of situations I put on a defensive sidearm for backcountry.

 

[Whaledriver]

You all might want to chrono the DT rounds. Unless they have changed things the advertising on the fps was not even close. Buffalo Bore is right on in my testing if not a little better. If you are ever going to reload the 10 is the one. I am always amazed on the versatility of the round. Zinging 135 grainers at 1500 fps or flinging 200 hardcast...it will do it all.

 

[AKMAN]

For a hard use, woods 10mm, you can't do better than the ramped, fully supported, stainless, KKM match barrel in your G20. New production LWD barrels are good, feed better than the old ones and are probably $50-$60 less expensive. When you get a barrel to shoot hot (Underwood 200/220s, etc) loads, you I always suggest a 22 or 24 pound spring and a stainless guide rod. Without it, you can get wild velocity swings (+/- 75 or so fps) due to the breech unlocking (or not) early and dumping pressure out the wrong end. (safe but no good for accurate shooting or maximum performance.)

 

[Tex68w]

I carry a G40 MOS with Trijicon RMR for my hunting sidearm. There are definitely better options in the wheel gun platform but the 10mm is about as good as it gets out of a semi auto. I'd go KKM barrel for the Glock 10mm.

 

[husky390]

10MM ammo & G20 questions/advice

I carry a G40 MOS with Trijicon RMR for my hunting sidearm. There are definitely better options in the wheel gun platform but the 10mm is about as good as it gets out of a semi auto. I'd go KKM barrel for the Glock 10mm.

Lucky. Glock released the 40 right after I finished my 20.


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[husky390]

For a hard use, woods 10mm, you can't do better than the ramped, fully supported, stainless, KKM match barrel in your G20. New production LWD barrels are good, feed better than the old ones and are probably $50-$60 less expensive. When you get a barrel to shoot hot (Underwood 200/220s, etc) loads, you I always suggest a 22 or 24 pound spring and a stainless guide rod. Without it, you can get wild velocity swings (+/- 75 or so fps) due to the breech unlocking (or not) early and dumping pressure out the wrong end. (safe but no good for accurate shooting or maximum performance.)

Thanks for tip on the spring. I was experiencing the velocity swings with my G20.


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[C Bow]

Email me at [email protected] and I will send pictures of my setup

 

[Tex68w]

Lucky. Glock released the 40 right after I finished my 20.


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Sell and buy a G40 or in typical gun nut fashion add the G40 to mix too haha.

 

[husky390]

Sell and buy a G40 or in typical gun nut fashion add the G40 to mix too haha.

LOL, adding a G40 has crossed my mind several times. So far I've resisted.


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[Sodbuster]

Tex68w
I carry a G40 MOS with Trijicon RMR for my hunting sidearm. There are definitely better options in the wheel gun platform but the 10mm is about as good as it gets out of a semi auto. I'd go KKM barrel for the Glock 10mm.

Same here.In my past trips to AK I carried a Sig 1911.I had thought about switching to a 460 S&W for a thumper that I could also use for deer hunting here in Missouri. Smith was way to heavy for what I wanted it for.
I went with the Glock 40.Had some ftf issues immediately.Swapped out the trigger group and light weight firing pin with a ZEV unit.
Switched out the barrel with a KKM. Trijicon RMR06 and Heinie Straight 8 Night Sights.Bought a Gun Fighter Denali chest rig that the pistol fits in perfect,with the optic.Runs slick now
Getting 1426 fps with 180 grain handloads.Going to swicth to 200 grain,get close to this speed and call it good.

 

[Sodbuster]

 

[Sodbuster]

 

[Sodbuster]

Three pounds with 16 rounds.

 

[Sodbuster]

3 lb 4 oz trigger.

 

[Sodbuster]