I recently found out that there was a company who’s making 170mm magazines that is purported to be able to fit 30 rounds of 9mm ammo so I decided to purchase one to give it a try.
Company is called MBXExtreme.com and they currently have four models of magazines 170/140 in 9mm and 140mm in 40S&W and 140mm in 45ACP.
According to the website, the 140mm 9mm magazines can hold 24 rounds and 170mm can hold 29-30 rounds.
As you can see from the video, I could fit 30 rounds in the magazine but not without some help. I think it’ll get better after “breaking in” the springs.
It is still not very clear to me how beneficial 30+1 rounds would be for me as most stages are around 30-32 rounds max especially with the stress that it puts on my grip. Perhaps it would be most beneficial if it was 31+1 for a maximum of 32rounds in the magazine.
I have a match coming up in a few days, I’ll take it out for a spin and report back with another video.
I bought three used magazines from a fellow shooter on Brian Enos Forum. One SV 170mm Mag tube, one SPS 170mm magazine and a STI 140mm Magazine. I also ordered three Bolen base pads from Shooters Connection and a EGW Magazine Gauge to make sure my magazines are under the maximum length limit for the USPSA Open Division.
Two 3mm and one 7mm for the 140mm STI Magtube.
The SV Tube that I bought came with a Dawson SNL +1 base pad which does not fit the gauge, so I had to swap it with a 3mm Bolen Basepad. (One down)
the SPS magazine was really short, compared to the SV tube, so even with a 4mm Bolen Basepad, it still is under the maximum length. (That’s two legal)
The third one was my old SV 170mm magazine that came with the gun, it about a 1/1000th of an inch longer so I had to file down on some areas to make it shorter a little. I had to do the same with the black SV mag tube above. so after fiddling around a little, here are the results. I manage to make 28rounds fit, but can’t get anymore. Some folks on the forums can fit 30, I have no idea how that’s done. Perhaps I need to tune the springs or something.
The last bit was the STI 140mm mag tube. It came with an STI basepad, I tried fitting on the Dawson SNL+1 basepad and all I got was 21rounds. After replacing it with a Bolen 7mm basepad, now I get 22 out of that magazine.
here’s all of them in a row and the current ammo capacity, I tried but I couldn’t get more than 28rounds to fit reliably.
There, I’m ready to go. armed with 108 rounds of .38 Super Comp. Now all I need is my rig.
If you carry daily like I do, make sure you clean your stuff every one or two weeks. I carry my Ruger LCP and a spare magazine in my jeans pocket almost everyday and it accumulates a lot of lint. This was taken after about a month of carrying this spare magazine.
I know a lot of you don’t really care about cleaning guns, but do check it once in a while to make sure that nothing will hamper it’s operation, especially when it comes to magazines for a semi-auto, as it is widely known to be the primary source of failure.
CheckMate Industries is sponsoring the 4th Annual Single Stack Championship in May 30th 2010 and I intend to participate with my Kimber TLE/RL II. I shoot IDPA with it a lot and only have a holster & one dual mag pouch. I did not have enough mags and mag pouches for Single Stack as each stage runs around 20-24 rounds and that means at least four 8round magazines.
Ordered some CMC Powermag+ 8 round magazines and Don Hume dual mag pouches from MidwayUSA and I’m all set… hopefully!
here are the details of the match if any of you are interested :
Sunday, May 30th, 2010
Renton Fish & Game Club
7 stages, ~140 rounds
$15 match fee
Awards for overall placement
Open to single stack 1911-style pistols. As in past years, this will be a non-denominational match, to attract both IDPA and USPSA shooters in the area. Targets and scoring will be based on IDPA, with Course of Fire rules borrowed from USPSA. Run and gun, drop mags all over the ground, the whole deal.
Average attendance the last three years has been ~50 shooters.
The Leatham-Enos scoring system allows ESP and CDP (and USPSA Single Stack) to shoot head-to-head, so there will be one division competing for the single stack championship, and other divisions for folks who just want the trigger time (bring your revo, Glocks, hi-caps, whatever, if you don’t have a 1911).
Leatham-Enos scoring adjusts the time penalty to accommodate power factor. Vickers scoring is always .5 second per point, major and minor can’t compete against each other. The scoring program will be tweaked to automatically apply a different penalty – .3 second – for major. Shooters will register as either CDP/Single Stack Major, or ESP/Single Stack Minor.
The match will generally be run like a regular club match, with shooters meeting at 10:00. No pre-registration required. Awards and prizes after the match.
I’ve never had a good experience with installing magwells onto my two pistols. Either it’s out of alignment, or the magwell opening is just too small. recall I had a problem with my XDm magazine release because it’s sitting too tightly pressed against the opening of the magwell.
When I installed the Wilson Combat Magwell on my Kimber just recently, I realized that it’ll only allow the stock basepad-less magazines to fit properly. If you use one of those magazines like the really good Chip McCormick ones with the plastic basepad, it won’t seat the magazine in properly :
you can see from this thin black line where the plastic meets the magwell :
Time to take my file and dremel and get it shaved down. so after about two hours and with my crappy dremeling skills, I’ve shaved off some steel and polished it with some sand paper and metal polisher :
I really need to work on my filing skills.. BUT it works! checkout the fit now :
Decided I wanted to try USPSA Production which is more of a run & gun kinda practical shooting compared to IDPA. USPSA allows the shooter to reload as an when they wish so I’d need more magazines and mag pouches. I bought an extra stock XD(m) mag pouch from someone on the Seattle Guns Forum for $20
and a CR Speed Dual Mag pouch to see which would work best.
Can’t wait for my gun to get back and head to the range to test these out.