Do I REALLY NEED THE MP 2.0 OPTICS 10MM?

rosewood said:
Unless you plan on swapping barrels, you should not be shooting 40 in a 10mm chambered barrel. Sure it will work most of the time, but the cartridges headspace off the mouth. Putting a 40 in a 10barrel, you are now relying on the extractor to headspace the round. You are placing undue stress on the extractor as well as the rim of the case and if the case by chance gets past the extractor, your gun will not fire.

The extractor is very important in reliability....(snipped)

Rosewood
Click to expand...

This argument is made all of the time and my question is this... unless a case is EXACTLY the length of the available chamber, then the cartridge is not headspacing on the mouth, it is being held by the extractor, and headspace is set by said extractor. It is not a bottleneck round headspacing on the shoulder.

Now the slight jump from a 40 length to a 10mm length could cause some wear/leading at the lead, but as far as the headspace I do not buy it.

A 3rd Gen 10mm that might have limited parts availability might make you pause, but a modern 10mm with an available replacement extractor and or barrel.... when I get mine I will not have too much concern shooting 40 rounds out of it if that is what I have available. Your results and opinions might vary.
 
Ethang said:
This argument is made all of the time and my question is this... unless a case is EXACTLY the length of the available chamber, then the cartridge is not headspacing on the mouth, it is being held by the extractor, and headspace is set by said extractor. It is not a bottleneck round headspacing on the shoulder.
Click to expand...
You would not want the extractor to just barely be long enough to fit over the rim. Any variation in case thickness would result in its not making it over the rim and causing a malfunction. There has got to be some extra room to accommodate cases with dinged up or slightly out of spec rims. So the question is whether the slop in the extractor is greater than the slop in the chamber length. I don't know which is greater.

But I do know that when I had a 610 10mm revolver it worked just fine without moon clips. The rounds headspaced on the chamber length and I never had a misfire or light primer strike.

I live where there is no threat from grizzlies so most of the people I know with 10mm pistols use them as range guns. In that case shooting 40 through the gun would be no big deal.
 
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m&p2.0fdethumbsafety said:
is 9mm really that ineffective for bear or cougar stopping?
Click to expand...

Even with 147 grain solids, I think 9mm is light for big bears. In the "93 cases" there are successful uses.

10mm with spec loads is too much for thugs. I have a XDM 10mm for range fun, because I handload, but I carry G19 on the street.
 
For dangerous game (grizzly in my neck of the woods) one should be carrying hard cast bullets. A 9mm hardcast is better than a 10mm hollow point. However, that's for another discussion. I've debated back and forth. My weapons of choice in the past in grizzly territory were either a 45 Colt, 44 magnum or a 454 Casull, always carried in a Diamond D chest rig.

Many years ago, I weighed the options, and started carrying my G20 in a chest rig instead. Then, when Springfield came out with their 10mm, I switched to that. I've been waiting for the M&P in 10mm for years. I will get one. Once I prove to myself that it is as reliable as my Glock and my Springfield, I will make the switch.

As others have stated, it's simply a personal decision. I make the following two points:
1) Nobody needs a 10MM.
and
2) Everybody needs a 10mm.
 
Ethang said:
you really came here to a bunch of enablers asking if you really need a new M&P? Most of us do not NEED a 10mm, but what does that have to do with the price of eggs? Need has nothing to do with it.
Click to expand...

I do not need ANOTHER 10MM but I WANT ANOTHER 10MM. :D
 
Are these actually showing up at gun stores in your area? I have checked with all of the local and semi local dealers and none have had any in stock or expected to be in stock anytime soon.
 
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To the OP:

Yeah you need the 10mm. Fun to shoot. Can go light or hot. I bought a 40 barrel for my 10 (G40) and it's a sweet mild plinker with 40s. I do have some of the HST 10 for personal defense. I don't think they'll over penetrate. And when the zombie apocalypse arrives You'll be well prepared. I like my 10. I've thought about using it for my church gun but I haven't practiced with it enough. Truthfully it's too big for my everyday carry. I'm still currently carrying my XDs .45 for that.

Go get that 10. They are pure fun to shoot and when loaded lite, pure pleasure. Loaded lite they kinda remind me of shooting 44 specials out of a 6". Well at least mine does.
 
I run back and forth to AK and the 10mm with the right loads is GREAT when you get caught without a long gun (been there will try NOT to do that again). I have a Glock 30SF with a Barstow 10mm barrel in it and will probably get a S&W M&P 2.0 10mm for work down here as the rails will let me mount a light. My Delta Elite will not fill that requirement.
 
Get it. I just picked up the 4" version today and it feels great in the hand. Mounted a Swampfox Liberty on it and can't wait to run some rounds through it
 
I've read reviews and all say the new 10m/m S&W is a pretty sweet shooting gun with surprisingly light recoil. With a good holographic sight I think it would be my first choice in big bear country and also a good deer or hog pistol. I may have to give one a try.
 
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Old18C said:
I run back and forth to AK and the 10mm with the right loads is GREAT when you get caught without a long gun (been there will try NOT to do that again). I have a Glock 30SF with a Barstow 10mm barrel in it and will probably get a S&W M&P 2.0 10mm for work down here as the rails will let me mount a light. My Delta Elite will not fill that requirement.
Click to expand...
All correct.

10mm pistols, loaded with and shooting REAL 10mm ammo, are dominating the AK pistol market, whether in the cities up there or out in the rural 'bear boonies' where the Big Bad bruins hang out.
 
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