Kahr .9mm vs Kahr .40mm

id go with the CM9 cheaper ammo and better follow up shots

Buy the .40S&W first, and pick up the 9mm later -- it'll quickly pay for itself in practice ammo savings. Assuming a box a week, you are looking at about $7 a box savings cheapest 9mm vs cheapest .40S&W practice ammo, so you have paid for your CM9 is about 15 months.

That's what I did.

I'd just get the .9mm then check out ammo offerings from makers like Underwood.

FWIW, I don't shoot much .40 and I find the Kahr .40 a bit of a handful. I am not able to shot the .40 quickly at all. Even the heavier all metal Kahrs have a fair amount of recoil compared to the 9mm. I'd suggest that if you're used to shooting .40, then you'll be fine, but if it's a new caliber to you, then the lightweight Kahr may not be a lot of fun.

I have a pm9, and a pm40. Shooting them back to back, I do notice the pm40's muzzle flip more, and would consider a pm9 a better choice for a gun someone isn't going to shoot a lot. the pm40's muzzle flip isn't extreme though, and the pm9 with hot ammo jumps almost as much.

papadork said:

I'm sticking with Kahr but I can't decide on the CM9 or the CM40. I heard that the CM40 doesn't have much muzzle flip like other 40's. Does anyone have an opinion on the CM40? They are both about the same size. I'm thinking what the heck, go for the bigger bang.

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Personally, I'd go with the 9mm hands down. Cheaper ammo, faster follow-up shots and if 9mm won't stop the threat, you need a rifle, not a .40S&W.

In that little gun, the .40 will hurt on both ends, and you will lose a round.

get the 9 with some +p Sd loads.
I have a CW9 looking at buying the CM 9 next.That or a G26.

I think you heard wrong, the 40 is just plain snotty. Go with the nine.

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I had a PM40. It is not as snappy as some would have you believe. After all these years I should have known better, and I still just couldn't learn to love a poly gun, so I sold it and got a Sig P938. Roughly the same size & weight but sleeker, more concealable and an extra round. The kahr is a nice gun tho....

It's 9mm, not .9mm...and .40 caliber, not .40mm.
More specifically the 9mm you are looking at would be called 9mm Luger, 9x19, 9mm NATO, 9mm Parabellum, or simply 9mm.

The .40 is .40 Smith and Wesson (S&W)




I am not a fan of the .40 S&W, especially in overly small pistols.

Lets not forget the PM40/CM40 (5+1) has one round less than the PM/CM9 (6+1). Personally I'd rather have the extra round over a little extra muzzle energy with some added recoil to boot. LM

40mm.....wow

40mm.....wow

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will hurt on both ends

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, at least at short range;-)

I shoot plenty of magnums so I am no stranger to recoil. However, in a pistol as light as the PM/CM's, I think 40S&W is really pushing the limit. I find +P a handful in my PM9. One box of 50 and I'm done for the day. If I had the PM/CM40, I don't think I could make myself practice enough to be proficient with it. But that's with my skill-set not yours. YMMV

I had a CW40 and while I didn't feel that the recoil was that bad even with hotter loads, there was considerable muzzle flip and quick follow up shots were a bit more difficult.