Anyone use Underwood Defense Ammo? Extreme defender?

This ammo seems to be wicked, just wanna hear your thoughts and opinions on this ammo.

Thanks.

I know a good hollow point works as expected.
Not enough documented proof of that bullet design for me to make the change.

Check You Tube for reviews

The " Philips Head Screwdriver Tip Bullets " concept is sound , and * potentially * could overlap that of conventional HP . Subtle differences in design of the flutes can significantly effect performance .

The above is better than can be said of any other non- conventional bullet design over the years .

All that said , I have not yet been convinced of Improvement over top performing conventional bullets .

More real world results in both defensive and hunting could cause me to reevaluate . Likewise , further R&D could eventually improve the product .

I know one of the guys who helped design the Lehigh bullet. Some of the testing proved unbelievable results. With that being said, some of the newer Hollow Point Bullets also show awesome test results. The difference I’ve seen is Hollow Point performance can be ruined by different factors such as clothing, Sheetrock etc whereas the “drill bit” style are less affected by outside factors. Personally I’m sold on the design.

I have been impressed with the test results of both Underwood and Lehigh. While thankfully I’ve not yet had occasion to put them to the test in a real-life self defense situation, they have performed excellently in training. I’ve picked up quantities in four calibers to add to my supply.

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I'm open minded to be convinced , but so far only dabbled with a few in a 9mm subcompact .

In purely my speculation , I could envision their initial sub niche to be .380 and .32acp micro guns . I'm thinking a properly shaped tip , and it could give meaningfully larger cavity , without a JHP's very narrow window between hard thresholds of no expansion and way too much expansion .

I have see several video's on different brands and types of this style bullet

and even though it does seem to work, the jury is still out at my house.

New ideas take a little time to soak in and replace the old proven ammo.

Let someone else do the Beta testing. Back when the Glaser prefragmented bullet was the latest & greatest thing, I used it around the farm (one of it's claims was no ricochet) and was less than thrilled with the results on various cirtters. None of which were trying to assault me.

Not familiar with that particular bullet but VERY impressed with Underwood ammo. I have found (in semi-autos) it to be much more reliable than Buffalo Bore. Revolver ammo is comparable, at the least!

Used a Glaser 32 acp to put down a wounded buck=head guide reported one shoulder and one side of ribs were "wasted" and bloodshot!

I have a suspicion that those bullets may be producing larger gel cavities mostly because of their higher than normal velocities and their very light weight for the caliber. Their very low sectional density causes a sudden braking effect similar to what is produced by expanding bullets. Penetration is reduced and a larger temporary cavity from the sudden deceleration is created. Not sure how much the screwdriver shaped nose adds to that.

Paul Harrell has a few videos testing them in various calibers. I saw nothing that would persuade me to switch from a traditional HP. All they do is punch a clean, caliber sized hole through the target. Now as a barrier defeating choice, or dangerous animal round they may be excellent, but for any other use I see no advantages. Underwood makes excellent ammo so it's not a matter of them being poorly manufactured. But having seen a deer shot close up with a Hardcast 357 and watching the deer run away with a clean little 357 hole through it, I can certainly attest that non-expanding bullets have a limited range of use. EDC not being one of their strong suits...

They seem impressive but I don't carry it because I can't easily find it. I do have a box in .38+P, but that's the only box I've found that wasn't priced like solid gold.

I use xtreme defender when I carry 9mm. For 40 and 45 I use the first 3-4 rounds of xtreme penetrator. My 357 sig has Underwood Bonded which, if memory serves me, is gdhp.

Actually my Shield 45 PC has 7+1 of Xtreme Penetrator.

The Underwood rounds shoot very accrately and in several thousand of rounds of it through my guns I have never had any type of problem.

Are you sure this wasn't the Xtreme Penetrator, and not the Xtreme Defender the OP was asking about? Those are 2 different bullets.
Larry

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