srothstein wrote: Thu Dec 19, 2019 9:40 pm
K-Texas wrote: Thu Dec 19, 2019 5:52 pmI think Springfield Armory just did us all a favor by having the XDm chambered in 10mm, and prices are good. But Glock is due some credit for making the G20 and proving there's a market. My quip in the second question was due to Ruger hyping the recoil reducing features of the American. The 9mm and .45 ACP are both rated for sustained use of +P. From +P .45 ACP tp 10mm is not a great leap.
They sure did me a favor. I picked one up two weeks ago and have been trying to find time to go shoot it. Assuming it shoots as well as I think it will, it is scheduled to become my carry gun. If the weather is good, my son and I have an trip to the range planned for this Saturday.
I had wanted the 1911 in 10mm, but I could get two XDm's for the same money and I did not have enough for the 1911.
I certainly like 1911s, but for the cartridge it was designed for. I like the Ruger SR 1911 because for one of many things, the plunger tube is cast integral to the frame rather than being staked on. 1911s in 10mm with bull barrels and full feed-ramps with complete support of the case-head without leaving a void at the bottom of the case, over the feed-ramp, would be a must for any 10mm I would consider. We're talking about a cartridge whose Max Average Pressure, or MAP, is 37,500 PSI. MAP for the .45 ACP is 21,000 PSI and 23,000 PSI for +P. Proper support of the case-head decreases the possibility of a case-head blow-out.
Modern pistol designs do not face the same problems. Full support of the case-head is easier to achieve with a full feed-ramps, and since most are bushingless, there's no need for a bull barrel. I'm not a Glockophile because they have a history, beginning with the G22, for allowing looser chamber dimensions to enhance feed reliability and early generations did not adequately support the case-head. The G22, however, has been improved with each generation after Gen 2, and hopefully it's the same for the G20. It was, obviously, the Austrian I was referring to in my email.
The Croation, of course being the XDm, with the Slovakian being the Grand Power pistol with it's rotary barrel locking system. Considering our exchange rate with Slovakia, Grand Powers seem, to me anyway, to be a bit expensive, particularly the 5" model. But as far as their reputation, there's not much to dislike and buyers seem to agree with the advertising hype that the rotary barrel locking system does help dispell recoil. Triggers are also rated as excellent.
With the Rugers, I've been watching what they've been doing with their .45 ACP pistols locking systems going back to the P-97. It was innovative, and Bill Ruger was responsible for it. The P-345 improved on it and I bought one. The barrel was 4.2", so lower velocity was likely a factor, but I fed mine a good many +P (velocity) type handloads and found it comfortable to shoot. I do like what they did with the American Pistols by shaping the cam-block, that contains the chamber, that acts like a braking system that carries the effect of recoil for a slightly longer period of time. We're talking milliseconds, but it is effective enough that it allowed the designers to lower the slide's mass that also helps in reducing felt recoil. So, believing that this all works, there's just no reason they can't build one in 10mm. After all, they haven't shown any interest in chambering the American in .40 S&W. Seems they're not interested in a cartridge that is ever declining in popularity, while the 10mm is just the opposite.
I'm sure that Ruger is profiting with the SR 1911 in 10mm and it would be among the first I'd look at as far as 1911s. I bought an XDm in .45 ACP in 2010 as soon as they were announced and ordered it sight unseen. I did have previous experience with a 5" XD Tactical in .40 S&W. The XDm 45 is an excellent pistol, and accurate. I put a Powder River Precision Match Grade trigger kit in mine and it became much like a target pistol with great accuracy aided by the excellent trigger. And I believe that others will follow like the S&W M&P and the SIG P320. All good things for us shooters.

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