G20 10MM ammo Question

[BKhunter]

Was looking to get a G20 10MM for the backcountry. Was curious what grain ammo you all prefer for this backcountry side arm.

 

[Desk Jockey]

Someone with more actual experience will come along and say heavy hard cast like the Buffalo Bore 220gr. Also, there is a conventional wisdom that will say you need to swap you barrel to one with conventional rifling to fire lead reliably and safely in your Glock.

FWIW, I used buffalo bore (I think the 220s) and a KKM barrel in my g20. sadly, I don’t hunt brown bear country enough so I have my 10mm out on long term loan to a friend that does.

 

[lstep]

For my G20 I went with the Underwood Xtreme Penetrator 140gr / 1500 fps. I carried this combo last fall in Wyoming and Colorado. No upgrade to the barrel with mine.

Sent from my SM-G781U using Tapatalk

 

[thinhorn_AK]

buffalo bore or underwood 220g hardcast.

 

[BKhunter]

buffalo bore or underwood 220g hardcast.

Did you make upgrades to your barrel?

 

[Ucsdryder]

I run 200gr hard cast but I’ve upgraded my barrel to a storm lake. The heavy stuff in a factory barrel won’t work for most. It didn’t in my g29. It would tumble.

 

[thinhorn_AK]

Did you make upgrades to your barrel?

yes. I use a KKM, ITs more accurate with every sort of ammo than the factory barrel.

 

[5MilesBack]

For the woods I carry 180gr XTP's and 200gr Underwood hardcast alternated in the magazine.

 

[Jbehredt]

Down here, 180 XTPs. Up nort 220 hard cast. Always Underwood.

 

[Beendare]

Underwood 200grain hard cast

10mm Auto 200 Grain Hard Cast Flat Nose

[bc-description action="new description"] Technical Information Caliber: 10mm Auto Bullet Weight: 200 Grains Bullet Style: Hi-Tek Coated Hard Cast Flat Nose 21 BHN Case Type: Ducta-Bright 7a Nickel Plated Brass Ballistics Information Muzzle Velocity: 1250 fps Muzzle Energy: 694 ft lbs...

www.underwoodammo.com

this ^ is what I use.

Ive got about 750rds of this ammo through my stock G20 with no malfunctions, no problems (I clean mine after every 300rds or so when shooting the hardcast)...and none of the tumbling reported from some of the heavier bullets.

———

 

[rickjames80]

Underwood 200grain hard cast

10mm Auto 200 Grain Hard Cast Flat Nose

[bc-description action="new description"] Technical Information Caliber: 10mm Auto Bullet Weight: 200 Grains Bullet Style: Hi-Tek Coated Hard Cast Flat Nose 21 BHN Case Type: Ducta-Bright 7a Nickel Plated Brass Ballistics Information Muzzle Velocity: 1250 fps Muzzle Energy: 694 ft lbs...

www.underwoodammo.com

Also what I use in a stock 29

 

[Ridge Ghost]

Also what I use in a stock 29

Same here in my 29 with stock barrel

 

[brocksw]

If you can load your own....order from this guy.

Account Suspended

 

[BDWMT]

200 Gr Hard Cast HSM Bear Loads in my G29, factory barrel. Probably will load the Swift A-Frames for this fall.

 

[rrMT]

Was looking to get a G20 10MM for the backcountry. Was curious what grain ammo you all prefer for this backcountry side arm.

Double tap 200gr hardcast

 

[dlecomte4]

Did you make upgrades to your barrel?

Hi. I use a S&W 1066 with the 4" barrel for my bear BU. Will this gun require a barrel upgrade to work with the 220g hard cast?

 

[McD18]

How many rounds of hard cast ammo are y'all putting through the barrel to feel confident the gun/barrel like the combo? I've still wearing in my G20, haven't had it that long or much time to shoot.