Underwood 10mm Auto 100 Grain Xtreme Defender.

[Blades]

I was returning a holster at a local pawn/gun store(Money Quick  Pawn and Gun)and needed to find something else. I saw they had Underwood in other calibers and a few in 10mm. Then I saw these lightweight Xtreme Defenders and bought them. I've wanted to try them but didn't want to order them and pay for shipping.  I still need to go to the range and see how they shoot. Underwood's website list muzzle velocity at 1825 fps and muzzle energy at 740 ft lbs. That puts the power factor around 182 so they should be an easy shooting bullet. I don't know what barrel length Underwood uses, but I think it may be a 5 inch barrel. I estimate the muzzle velocity for my G29 will be around 1700 fps(?), but that is just a W.A.G.
Anyone else played with these?


I watched a youtube video(Kentucky Ballistics) and the gentleman fired three Underwood 10mm rounds(150 Grain Xtreme Hunter; 115 Grain Xtreme Defender; 140 Grain Xtreme Penetrator) and all three penetrated around 23-24 inches. I would have thought the Hunter and Penetrator rounds would have gone farther than the Defender. 

[Kenk]

Evening Blades,
I have tried much of UW's offerings in 10mm, but not this load, looks like a lot of fun. If it's anything like their 135gr, but more so...hold on tight my Friend : )

[Trapper6L]

I haven't bought any of their loaded stuff but have bought some of the bullets for components. The .311 123gr Chaos is absolute THE bullet for a 7.62x 39. With a full house load of 1680 at 2400'ps, it's bad medicine on feral hogs. Not much difference between shooting a hog with it or a nuke, the hog just hits the dirt like the sky fell on him. Accuracy out of my AR upper is near one hole groups at 100yds. Extreme accuracy. I bought the Extreme Defense in 40 caliber, 115gr. With a max load of CFE Pistol, there's not a lot that's going to walk over you. My neighbor on round up always has a few cattle that get injured. He kills them and then butchers them. He gives the meat to the folks at church. He put one round thru about a 1200lb cow and she just crumpled. The gun is a Long Slide R1 10mm. Only downside I've come across with them is possible over penetration for carry ammo and they're a tad on the expensive side even as components. One of these days I'm going to order some of the 9mm 65gr Extreme Defense. A 9mm pushing that bullet at 1800'ps is more than I can resist. Sure will add significantly to the kill power of a 9mm.

[Kenk]

Absolutely : )

[Bluebird5000]

A few years ago I shot some pumpkins with the 65gr defender out of .357 which should be going at 2100fps. Below is the video. I didn't shoot any of the 100gr 10mm defenders.

https://drive.google.com/file/d/0B4DH6bbdhfX2VW9kWWJYZ0hrSVE/view?usp=sharing

[10_fan]

Blades, i know this is an old post however iwanted to share info on the lehigh extreme penetrators, i hit a pig (about 150 pounds) in the neck at 20 yards with my g40, hand loads with blue dot, hit the pig in the neck just behind the jaw and broke the spine in half, the bullet traveled through the neck, shoulder, and body exiting g the right rear arse, complete through and through dropped the pig in its tracks, blue dot powder, winchester large magnum pistol primers i do not own a chrono but the shot say much on that bullet sir

[Captain O]

Underwood Leghigh "Extreme Penetrators" are the best medium, medium-large game loads for the caliber, bar none!

You can take that to the bank!