Help support WeTheArmed.com by visiting our sponsors.

Author Topic: Mossberg 930JM  (Read 5021 times)

Outbreak

  • NRA Basic Pistol Instructor
  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11014
  • Outbreak Monkey ^

  • Online
Mossberg 930JM
« on: May 23, 2012, 03:30:43 AM »
A month or so ago I bought a Mossberg 930JM (Jerry Miculek). It's a Mossy 930 that comes set up for 3-gun competition out of the box. It's got an enlarged bolt release button, the receiver is flared slightly around the loading port, and it comes with Nordic Components mag tube extensions. This is nice since it makes it very easy to add mag capacity.The gun is advertised as either 8+1 or 9+1. I bought the 8+1, which is really an 8 and a half +1. I added an "extra large" Nordic 3/4" cap and I can just squeeze 9 in the tube using 2 3/4" loads. They make a longer 1.5" cap, which would allow easier loading of 9+1, or that same tight fit of 3" shells. It also comes with a full set of chokes, a choke wrench, and chamber flag.

I bought it at the BX for cheap, since I don't think most of the customers knew what to make of a Mossberg without a ridiculous muzzle device or a chainsaw grip. But I was going TDY for a month the next day, so I just got to shoot it this weekend.

I really like it. The shotgun stage had 3 slug shots at about 75 yards, and then a course of stationary clays and steel at 15-25yds. I didn't win, but for the first time out with the gun, I did ok.

Loading weak hand was much easier than on my 1100. The loading gate didn't bite my thumb, but it does in dry practice, so I might get it welded up in the future. The fiber-optic front sight was dead on for the slug shots, though you really have to get down on the stock to line up on the sights. The gun comes with a ton of inserts to change LOP and maybe stock angle. I don't really know how to use them, and I'd rather just practice and learn the gun as-is.

I threw almost all the slugs high when I ran the stage, so after everyone was done I expended the remaining 6 slugs I had on figuring out where it was hitting. That's when I figured out I need to really hunker down on the gun to see no rib and just sight and it hits perfectly. I nailed the plate at 75yd 5/6 shots.

The slugs left my shoulder a little sore the next day, but, at the time, the gun tamed them nicely. 7 1/2 federal game loads were pussy cats.

Many have written great reviews on the 930 series, typically the SPX. I don't think this gun loses anything against the other variants, depending on your sight preference, but if you're shooting 3-gun, this one is the way to go.
« Last Edit: May 24, 2012, 02:33:07 PM by Outbreak »
TexasOutbreak

I take my coffee black...like my rifles.

I absolutely despise Glocks. That's why I only own two.

I'm glad that your chains rest lightly upon you. --JesseL


Help support WeTheArmed.com by visiting our sponsors.

coelacanth

  • Senior Contributor
  • *****
  • Posts: 4306

  • Offline
Re: Mossberg 930JM
« Reply #1 on: May 23, 2012, 03:40:02 AM »
Good review - thanks.  :cool  Haven't seen one of those in a store yet but they sound interesting.
« Last Edit: May 24, 2012, 02:33:24 PM by Outbreak »
"A dying culture invariably exhibits personal rudeness.  Bad manners.  Lack of consideration for others in minor matters.  A loss of politeness, of gentle manners, is more significant than is a riot." 

            Robert A. Heinlein , "Friday"

Outbreak

  • NRA Basic Pistol Instructor
  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11014
  • Outbreak Monkey ^

  • Online
Re: Mossberg 930JM
« Reply #2 on: May 23, 2012, 04:05:13 AM »
Thanks!

You won't likely see one on the shelf. From what I hear, I got extremely lucky. The BX got one because they made a big package order from Mossberg, and the newest coolest 930 was part of the package. My cousin promised to buy one if they had two. They're in high demand because they're $600 shotguns that do everything a Benelli M2 does for half the price.

The fun part was that I shoot with a lot of Open Division shooters. Lots of tricked out Benellis, speed loaders, optics, etc. One guy even brought his brand-new Akdal 1919 with the full competition conversion from Firebird Precision. $2500 shotgun before you get the extended mags.

My Mossberg stole the spotlight. I had 4 or 5 guys huddled around my truck after the shotgun stage drooling over my thumb-stuffer. No one cared about the 12ga AR. They wanted to see the $600 Benelli killer.
« Last Edit: May 24, 2012, 02:33:38 PM by Outbreak »
TexasOutbreak

I take my coffee black...like my rifles.

I absolutely despise Glocks. That's why I only own two.

I'm glad that your chains rest lightly upon you. --JesseL

Langenator

  • Contributor
  • ****
  • Posts: 1415

  • Offline
Re: Mossberg 930JM
« Reply #3 on: May 23, 2012, 09:28:03 AM »
Sounds like I'm going to have to put a bug in the local shop's ear about getting one.

I've read that you need to make sure you give it (actually, pretty much any 930) a good cleaning before shooting, and make sure it's well lubed.  True/false?
« Last Edit: May 24, 2012, 02:34:28 PM by Outbreak »
TexasFortuna Fortis Paratus

Outbreak

  • NRA Basic Pistol Instructor
  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11014
  • Outbreak Monkey ^

  • Online
Re: Mossberg 930JM
« Reply #4 on: May 23, 2012, 12:49:47 PM »
I disassembled and Slipstreamed, but it wasn't dirty.
« Last Edit: May 24, 2012, 02:34:42 PM by Outbreak »
TexasOutbreak

I take my coffee black...like my rifles.

I absolutely despise Glocks. That's why I only own two.

I'm glad that your chains rest lightly upon you. --JesseL

Outbreak

  • NRA Basic Pistol Instructor
  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11014
  • Outbreak Monkey ^

  • Online
Re: Mossberg 930JM
« Reply #5 on: May 24, 2012, 02:37:40 PM »
For Harm,


The top is a JM the bottom is an SPX.
TexasOutbreak

I take my coffee black...like my rifles.

I absolutely despise Glocks. That's why I only own two.

I'm glad that your chains rest lightly upon you. --JesseL

Langenator

  • Contributor
  • ****
  • Posts: 1415

  • Offline
Re: Mossberg 930JM
« Reply #6 on: May 24, 2012, 10:10:50 PM »
Are those ports on the SPX? (i.e., welcome to Open Division?)
TexasFortuna Fortis Paratus


Help support WeTheArmed.com by visiting our sponsors.

Harm

  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11154

  • Offline
Re: Mossberg 930JM
« Reply #7 on: May 25, 2012, 12:52:36 AM »
Okthx for the pcs Outbreak - mind if you walk me through a few questions if you dont mind.

1. Would you have any issues using your JM for an HD shottie, if so what?  The mods while game inspired seem useful for that as well. 

2. How does it wield for doors and hallways etc?

3. Compare the sights to the SPX and SPX Tactical if you have any exp w those models. 

Thanks man.
H
ArizonaIn Deo Confido

Once more into the fray
Into the last good fight I'll ever know
Live and die on this day
Live and die on this day

Outbreak

  • NRA Basic Pistol Instructor
  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11014
  • Outbreak Monkey ^

  • Online
Re: Mossberg 930JM
« Reply #8 on: May 25, 2012, 12:56:08 PM »
1. Never really thought about it. It's longer than my HD Mossberg 500.
2. Just tried it. It works, but it's about 3" longer overall than my 500. Doesn't feel as "handy."
3. I have seen the sights on the SPX, maybe the SPX tactical, but not enough to remember them. Sorry.
TexasOutbreak

I take my coffee black...like my rifles.

I absolutely despise Glocks. That's why I only own two.

I'm glad that your chains rest lightly upon you. --JesseL

Harm

  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11154

  • Offline
Re: Mossberg 930JM
« Reply #9 on: May 25, 2012, 05:28:23 PM »
Thx man.  I appreciate it.
ArizonaIn Deo Confido

Once more into the fray
Into the last good fight I'll ever know
Live and die on this day
Live and die on this day

Skunk Ape

  • Member
  • **
  • Posts: 339

  • Offline
Re: Mossberg 930JM
« Reply #10 on: June 30, 2012, 12:53:04 AM »
I don't think most of the customers knew what to make of a Mossberg without a ridiculous muzzle device or a chainsaw grip. 

 :clap

If you have to scrunch down on the stock to align the front sight, then a spacer between the receiver and the stock would help you to get a good sight picture without the crunched cheeekbone.  It made a big difference on my 500A.
Get these bodies together...five or six of 'em, all laid out on the front of our ship. Put Book front and center, he's our friend and we should honor him. Kaylee, find that kid who's taking a dirt nap with baby Jesus, we need a hood ornament.

Outbreak

  • NRA Basic Pistol Instructor
  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11014
  • Outbreak Monkey ^

  • Online
Re: Mossberg 930JM
« Reply #11 on: July 02, 2012, 08:07:51 PM »
For me, it's a repeatable position, so I'll adapt. It came with the inserts, and I may try them eventually. Right now the gun is on loan to my cousin so he can shoot RM3G with it this year.
TexasOutbreak

I take my coffee black...like my rifles.

I absolutely despise Glocks. That's why I only own two.

I'm glad that your chains rest lightly upon you. --JesseL

SCAR Joe

  • Junior Member
  • *
  • Posts: 35

  • Offline
Re: Mossberg 930JM
« Reply #12 on: September 09, 2012, 02:30:00 AM »
I have a 930.  Actually I bought two of them.  While Id never ask you what you paid for the modified one you bought, are they that much more than the standard 930's?
Washington

Outbreak

  • NRA Basic Pistol Instructor
  • WTA Staff
  • Senior Contributor
  • *****
  • Posts: 11014
  • Outbreak Monkey ^

  • Online
Re: Mossberg 930JM
« Reply #13 on: September 09, 2012, 02:26:44 PM »
I paid around $600 or so. I usually forget what I paid for my guns pretty quickly so I don't get buyer's remorse.

The mods are fine little touches that make it better for competition. The loading port is opened up and beveled, the tube is extended to hold either 8+1 or 9+1, depending on the model. It's got an oversized bolt release button and an extended charging handle. All the upgraded parts are from Nordic Components, making it easier to swap them out. I already put an extended cap on my tube to turn my 8+1 into a 9+1.
TexasOutbreak

I take my coffee black...like my rifles.

I absolutely despise Glocks. That's why I only own two.

I'm glad that your chains rest lightly upon you. --JesseL


Help support WeTheArmed.com by visiting our sponsors.

SCAR Joe

  • Junior Member
  • *
  • Posts: 35

  • Offline
Re: Mossberg 930JM
« Reply #14 on: September 12, 2012, 07:35:51 PM »
Thanks OB.
Washington


Help support WeTheArmed.com by visiting our sponsors.