AMMO TEST: 10mm Underwood 200 Gr Hornady XTP JHP




What do you think about this video?

Moshe Dayan: Thank you TNOUTDOORS9
We love your ammo tests in Jacksonville Fl. 

James Potter: Excellent video sound testing ++

EABOY2600: https://youtu.be/8_fzqUAb-2A

poncoolride: 200 grain at about 1200 = original Norma specs.

Irondealer: It's not a crapshoot when trying to understand penetration vs velocity you goober. When you shoot water jugs with a 5.7 vs 22 mag vs 22 lr, the 5.7 and the mag blow up the first jug and stop in the 2nd or 3rd, while the lr whistles clean through 5 or 6. Why? Specifically because the lr is lower velocity. It's the theory of every action has an equal and opposite reaction. When the bullet is screaming along out of the 5.7/mag and slams into the water, the forces working against the bullet are tremendous, causing expansion/deformation. The lateral forces created causes the bullet deformation/expansion and the temporary cavity/exploding jug and slows the bullet, in addition to the parachute effect of the deformed/expanded bullet. When the much slower lr hits the water, the forces working against it are much lower, and it's easier for the water to allow the bullet to pass through. That's what's happening with the slower factory 10mm ammunition.

chadinmesa: Now that Glock has come out with the 6 inched barreled Model 40 the Underwood 200 grain may be the perfect round for self defense. I would love to see you retest it in this new Glock.

FlyTour69: @4:13 Mushroom cloud!

Kahrman: tnoutdoors9, thank you for all the testing you do and sharing the info.  Need advice on 10mm ammo
From all of your testing can you tell me what would be the best loads for a Glock 29 Gen 4 pistol for home protection and woods protection?
Looking forward to your responses. Thanks in advance for your help.

Ronaldo Crespin: If were rolling the dice on this one, then I just don't know what to think. I have a pretty good feeling about this round being able to stop the threat. I do not have an extensive knowledge of ballistics, but I am confident that this round would be pretty close to the top of the list when it comes to stopping power, for a handgun round anyway.

Wraithiss: That appeared to have much more consistent expansion than the Gold Dot loading from Underwood.  I wonder if that is just an anomaly, or if its indicative of something.

Johnny Wright: The 200 grain nosler was designed for DT for the 10mm at high velocities. Underwood is loading them now at higher velocities and I will tell you that the nosler performs like a hot 10 should. I hand loaded them for my 6.6 inch LWD long slide with 11 grains of blue dot and was clocking in at 1400 fps. They looked like a 308 soft point pulled out of a deer when I did my wet pack test. I dropped many big tx hogs at 100 yards and a doe at 175 yards that dropped in her tracks. I practice extensively at long range and have been doing so with my Luger navy long barrel with pop up sights since I was 8. The main thing with 10mm on deer is know your ammo and if you have doubts use hard cast and remember exactly where you shot it and blood track it. I've never had any issues however with XTPs with any velocities. I've taken pigs with XTPs in a Glock 19 with complete pass through. However, I shoot them in the head and there's no reason not to. They're head area is just about as big as the lung area. But down here if we don't have to drag them off the road it's a good thing. They are varmint and unless it's less than 30lb for eating or a monster and I want pics, they're getting tossed or sold to the Mexican's for tamales. 

Stefano Dogg: The 135 grain Nosler load is a far better choice for civilian self defense against bipedal hyenas. Underwood just restocked, I bought 6 boxes of the aforementioned for street carry, and a buddy of mine and are loading the same load for practice and zombie apocalypse ammo. You do great tests, but please use the clear gel if possible in the future, it's awesome to see that slow speed footage..

EABOY2600: This would make a great self-defense round especially if you have to shoot the a car door or window, it's heavy but very fast it will punch through! 

Cleatus Van Damne: 10mm and .45 Super make me all happy face.

jeremy beverly: I've been looking to see if you've done a 40 in underwood but I can't find it I want a hot load but Speer gold dot 165 has done me well. If you do have a 40 underwood video can you guide me to it great video and thank you.

noel hernandez: Anyone ever test Underwoods .223 or. 556??

Barry Newman: it is a crap shoot but it seems to be whos crap you like better. Massive energy dump. You seem to have an issue with Underwood.

100REALM: I think the greater "energy dump" would equate to more knock down power versus less energy & more penetration. 

vegasbob007: Good video .Thanks .

Rating:
AMMO TEST: 10mm Underwood 200 gr Hornady XTP JHP 5 out of 5

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