10mm-Auto

Other Ammunition Calibers => Factory Ammo => Topic started by: Kenk on April 05 2022 07:07:42 PM MDT

Title: Underwood?s Bonded GD 147gr +P+
Post by: Kenk on April 05 2022 07:07:42 PM MDT
Have been doing some reliably testing the last few weeks with Underwood?s Bonded GD 147gr +P+. Considering how moderate the recoil is for a +P+, as well as their massive expansion  (0.814), they are looking like potentially good carry rd.

https://www.underwoodammo.com/9mm-luger-plus-p-plus-147-grain-bonded-jacket-hollow-point.html

https://m.youtube.com/watch?time_continue=4&v=TMiI8VcPQ3c&feature=emb_logo
Title: Re: Underwood?s Bonded GD 147gr +P+
Post by: The_Shadow on April 05 2022 08:18:03 PM MDT
At one time he was loading them to:
Muzzle Velocity: 1250 fps
Muzzle Energy: 509 ft. lbs

Title: Re: Underwood?s Bonded GD 147gr +P+
Post by: Kenk on April 05 2022 09:17:40 PM MDT
Yep, Kevin & Company make some awesome stuff
Title: Re: Underwood?s Bonded GD 147gr +P+
Post by: Bluebird5000 on April 07 2022 01:11:56 PM MDT
It's good quality stuff. One thing to consider is it will typically expand more but penetrate less.

I cannot remember if it was 147 or 124 but in my tiny Glock 43 with the standard spring it did not recycle as reliably as the other stuff. One or two in 100 would fail to feed. In other glocks I have heard they cycle fine.

Title: Re: Underwood?s Bonded GD 147gr +P+
Post by: Kenk on April 07 2022 02:27:17 PM MDT
So far so good in my XDm 3.8, just going to keep testing them
Title: Re: Underwood?s Bonded GD 147gr +P+
Post by: Kenk on April 07 2022 02:39:50 PM MDT
Also, I?m checking with Underwood to see what kind of penetration they are seeing
Title: Re: Underwood?s Bonded GD 147gr +P+
Post by: Kenk on April 07 2022 04:01:07 PM MDT
Underwood just got back to me

Hello, Ken
The 147-grain +p+ is giving us typically through 2 layers of denim about 16.5 inches of penetration. The 124-grain +p+ is giving about 17 inches of penetration through 2 layers of denim.
Title: Re: Underwood?s Bonded GD 147gr +P+
Post by: Kenk on April 09 2022 03:59:20 PM MDT
With penetration around 16?, Underwood?s 147gr +P+ should work dandy when carrying a 9 : )