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AR15.COM
10/27/2007 7:40:07 PM EDT
I work at a pawn shop and recently took into pawn a sigma in 40. The gun fit my hand wonderfully, and pointed as well as any other gun.

Yesterday, my Boss said he was ordering a ton of them to sell new in the stores and we got to talking about them. Short story shorter, I am getting one or two. I've read a zillion reviews, and the best I can tell is everyone likes to whine about the trigger pull. Well, let em shoot my Kel-Tec P11, its like pulling stumps. Worse comes to worse, ill get a trigger job or try some different striker springs.

The real problem I am having is deciding which caliber, 9 or 40, I should get. So I turn to the board. Which do you think I should get? I am not particularly attached to one or the other. I already have one 9, so having another would not be an issue for me. But how about the 40? do they Kaboom more readily(if this is even a problem with the sigma)? Do they do anything better or worse than the 9? I like the higher capacity, but in a bedside gun, I am willing to keep a few mags on hand(four to be exact, awesome timing with the free mags deal) if that is necessary to have the best anti-whatever round.

Also, besides pros and cons of each round, any tips about the platform and accessories(lights, holsters, whatever) are greatly appreciated.
10/29/2007 5:50:20 PM EDT
[#1]
9mm

MUCH less muzzle flip = faster follow up shots
Cheaper ammo = more practice
Higher mag capacity -- doesn't really matter but there it is.

Using modern hollowpoint ammunition, the .40 doesn't really offer much with regard to ballistics over 9mm. I don't really see any advantage to .40 over 9mm.
10/30/2007 3:14:24 PM EDT
[#2]
The only reason I'd choose a .40 is if I was restricted to FMJ ammo.

When I have to carry a 9mm it's with 124gr +p gold dots or 127gr +p+ ranger.
10/30/2007 4:34:22 PM EDT
[#3]

Quoted:
9mm

MUCH less muzzle flip = faster follow up shots
Cheaper ammo = more practice
Higher mag capacity -- doesn't really matter but there it is.

Using modern hollowpoint ammunition, the .40 doesn't really offer much with regard to ballistics over 9mm. I don't really see any advantage to .40 over 9mm.




Sums it all up nicely, IMO............    
10/30/2007 4:40:38 PM EDT
[#4]
Both of my Glocks are .40s.  I'm not getting rid of them soon, but if I was buying them today they would be 9mm.
10/31/2007 5:34:47 AM EDT
[#5]
9mm.  I've always thought the 40 was an answer in search of a question.  

Cheaper ammo.  Higher mag capacity.  Less recoil.  Comparable ballistic performance.
11/3/2007 6:41:34 AM EDT
[#6]
Choose 9mm. for less recoil. I think the 40 recoils too much to get a fast accurate 2nd shot.                
Changing striker springs will compromise reliability.                                                                        
S&W won't do a trigger job on a Sigma. If you have the skill the trigger bar has three springs on one pin to return the trigger. Take the biggest spring out and reassemble. Will help pull quite a bit. Mine has been totally reliable without that spring.                        

 Good Luck
11/3/2007 6:52:59 AM EDT
[#7]
9mm for all the reasons above and in addition you can buy ammo ANYWHERE. I have found .40 selection to be limited in some areas.
11/6/2007 7:47:14 AM EDT
[#8]
With all the GOOD loads for the 9mm its hard to go 40cal
I own both myself
6906 and a P229

I trust both the same as far as power stopping goes
11/6/2007 4:33:53 PM EDT
[#9]
9mm all the way. I have a G19, G17, 92F, and USP, all in 9mm.Cheaper ammo, not much difference in ballistics. My roomate has a G23 and always talks down about my 9s. I have a G29. That's my "40 Magnum". If you want to sling a .40cal bullet, might as well be the 10mm auto. That's actually been my carry gun for the last three years. Also you can find 9mm ammo anywhere in the world.