40 S&W or .357 sig

Arne,

I received my XR9/S on Saturday and was comparing it with my Sig P229 in 40 S&W. The outside diameter of both barrels are almost the same and it got me to wondering if you didn't have barrel conversion kits in mind for the future. It looks like there is plenty of room in the mag well for either 40 S&W or .357 Sig mags. The slide looks beefy enough and the recoil spring could easily be converted. My only concern might be that the XR9/S doesn't have full length frame rails.

When you come out with L Model you might keep in mind what Sig has done in offering conversion kits that only require a barrel, a recoil spring and a mag.

Thanks-Andy

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Replies to This Discussion

Permalink Reply by Arne Boberg on November 21, 2011 at 7:19pm

The barrel area may not change much for .40 S&W/.357 Sig, but the lift mechanism has to be totally engineered from scratch. As far as full length frame rails - they are probably not necessary - after all, a 1911 pistol has their frame rails go halfway down the gun. I do have an idea for frame rails that go full length, but it would require some design changes in the recoil bulkhead area. As far as a conversion kit, that is a possibility, but it would only be for .357 Sig/.40 S&W - not from 9mm Luger.

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Permalink Reply by Christopher Jerold Rogers on April 15, 2012 at 8:49pm

I would much rather see a full size pistol designed and chambered for the 10mm cartridge. You h.ave many more choices for caliber change with barrel swaps.

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Permalink Reply by mur.cap on April 16, 2012 at 11:01am

If you haven't shot a 10mm pistol, you might be in for an interesting recoil difference. After shooting .38 Spl. for decades and then a 9mm for two decades, I geared-up to the .45 Cal. for the last decade. I'm comfortable with the .45 in sub compacts. I'm not sure about a 10mm compact pistol...yet. Anyway, I was looking at two handguns which are "small" pistols. I'm only comparing them mostly in size, but both have interchangable caliber capabilities. The first is the "DoubleTap" Titanium pocket pistol (Derringer style design with trigger guard) in .45/9mm. It has a 3.0 inch barrel and is 1/2 inch longer than the XR9-S and only fires two rounds. The price is "up there,' check the hotlink below. The gun is touted at .14 oz (empty). I have a Titanium J-Frame which is 11.3 ounces (empty) and is a five shot. The next handgun advised it is the smallest and most powerful personal protection by Bond Arms. Yes, it is small at 4.5 in. and it has interchangable barrels. Barrel length is 2.5. BUT it's a derringer. It offers various rounds including a .410 Caliber shotshell and 10mm. It appears that some calibers require a 3-inch barrel. Now, the only reason I'm mentioning these is that we have been discussing "small platforms with high calibers" and no one has mentioned these two other pistols to date. (We were also comparing small sub compact sizes with the XR9-S). I personally do not like these two pistols and I would never carry any Derringer pistol no matter how many 'safety' features it offers.

http://heizerfirearms.com/

http://bondarms.com/bond-arms-guns/bond-mini

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Permalink Reply by Christopher Jerold Rogers on April 16, 2012 at 12:02pm

I have shot a couple 10mm's. I am not very recoil sensitive so that's not a problem for me. I shoot my scandium j-frame smith with full power .357 loads a lot. I do feel that the 10mm cartridge is a bit of overkill for a compact pistol. To really reap the rewards of what the 10mm has to offer you need a standard length barrel at least. I wouldn't case much for a 10mm XR9s but I would fall in love with an XR9L chambered for 10mm that you could buy caliber exchange barrels for.

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Permalink Reply by mur.cap on April 16, 2012 at 12:32pm

The Titanium Airlite is sufficient for me (with +Ps) vs. the Scandium .357 (due to high recoil in both) but they both fit in the pocket nicely. I think shooting gloves are in order for the range at least. I'm also happy with the XR9-S, but who knows a larger caliber with an "L" would be interesting to see, especially with those "exchange" barrels. The gun would just be a little longer.

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Permalink Reply by BretShooter on April 16, 2012 at 2:14pm

Christopher Jerold Rogers said:

I would much rather see a full size pistol designed and chambered for the 10mm cartridge. You h.ave many more choices for caliber change with barrel swaps.

Considering what Arne said (below), it is unlikely that a 10mm would be able to just swap barrels with anything other than 10mm case derivatives (9x25, for instance). So even though 45 fits into the same magazine length, the difference in diameter means that a different lifter mechanism. So unless he modularizes the lifter assy, the frames will be relatively case specific

Arne Boberg said:

The barrel area may not change much for .40 S&W/.357 Sig, but the lift mechanism has to be totally engineered from scratch.... As far as a conversion kit, that is a possibility, but it would only be for .357 Sig/.40 S&W - not from 9mm Luger.

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Permalink Reply by mur.cap on April 16, 2012 at 3:34pm

Arne will have to invent an entirely new handgun for a specific caliber. Our XR9-S may then be religated to "back-ups." Nice thought though.

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Permalink Reply by Christopher Jerold Rogers on April 16, 2012 at 5:27pm

I was referring to to caliber interchange ability simular to The glock 20. I don't know me any pistol that you can go from 10mm to .45 with a barrel swap.

BretShooter said:

Christopher Jerold Rogers said:

I would much rather see a full size pistol designed and chambered for the 10mm cartridge. You h.ave many more choices for caliber change with barrel swaps.

Considering what Arne said (below), it is unlikely that a 10mm would be able to just swap barrels with anything other than 10mm case derivatives (9x25, for instance). So even though 45 fits into the same magazine length, the difference in diameter means that a different lifter mechanism. So unless he modularizes the lifter assy, the frames will be relatively case specific

Arne Boberg said:

The barrel area may not change much for .40 S&W/.357 Sig, but the lift mechanism has to be totally engineered from scratch.... As far as a conversion kit, that is a possibility, but it would only be for .357 Sig/.40 S&W - not from 9mm Luger.

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Permalink Reply by BretShooter on April 16, 2012 at 6:28pm

You did say barrel, and I was thinking barrel and slide, like on a 1911. Sorry.

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Permalink Reply by Blueorison on May 15, 2012 at 10:10pm

I've posted on the previous .357SIG short discussions; I would love to have one in .357SIG.

I am still vying for the L-model; but the SIG will give us a 9mm-sized round (approx.) that has more power. However, in going to the .40 S&W or .357SIG, you will reduce the capacity. I still am on the list for the L-model.