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Underwood +P 380

Moderators: ripjack13, John A.


Copper BB
Posts: 1
Joined: Wed Jul 24, 2019 8:37 pm
PostPosted: Tue Aug 13, 2019 6:11 pm
Has anyone used or had any experience with Underwood +P 380 ammo. The reviews on Midway USA says it runs fine through a Glock 42 and a couple other guns. Being there is no standard for +P 380 it concerns me to run it through my RM380 I would like to use it though it has some great specs

Product Information
Cartridge 380 ACP +P
Quantity 20 Round
Grain Weight 90 Grains
Muzzle Velocity 1200 Feet Per Second
Muzzle Energy 288 Foot Pounds
Bullet Style Jacketed Hollow Point
Bullet Brand And Model Hornady XTP
Lead Free No
Case Type Nickel Plated
Primer Boxer
Corrosive No
Reloadable Yes

.410
Posts: 66
Joined: Mon Jan 23, 2017 9:28 pm
PostPosted: Tue Aug 13, 2019 9:03 pm
As someone who ended up with a cracked slide, and someone who also--very early in my ownership--had some undue wear/peening on slide/barrel contact points that needed some gunsmith attention, I would tread very lightly with hotter ammo choices for the RM380. Couple that with Remington's very antagonistic attitude toward servicing their pistols, and I think choices like Underwood +P or Buffalo Bore are disasters waiting to happen. (And I would happily shoot either of those in my Pico or Glock.)

YRMV, of course, but for me I'll be making do with the milder choices of ammo that still perform adequately.

.410
Posts: 68
Joined: Wed May 11, 2016 1:48 pm
Location: SEMO
PostPosted: Wed Aug 14, 2019 9:00 am
What bosco said, while Underwood and Buffalo bore are fantastic ammo I would not shoot it in my RM380, there have been several things that have been reported with the RM. Some people may use it with no problems but I think it may have too much pressure and slide speed. Just my humble opinion and like a&&#@!*s everybody has one.

Steve..........

.410
Posts: 35
Joined: Sat Jul 14, 2018 9:10 am
PostPosted: Wed Aug 14, 2019 11:55 pm
i wouldn't take a chance on it. my .380 pistols all operate on Federal Hydra-shok quite well. S&W .380 Body Guard, LCP and RM380. it's your pistol....do as you please.

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