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I have an ATI Milsport and a Grand Power Stribog. Both are 100% reliable and a kick in the pants to shoot. Very accurate and both are priced great. ATI takes glock mags and the Stribog mags are high quality and inexpensive. 2 good alternatives.
Seems to me that the MPX mostly suffers because of the extra large magazines that people are running in those competitions. I have a gen 1 and a gen 2 and with factory sig magazines I've never had any issues. I've run both gen 1 and gen 2 in a sudo stress test mode in that I've put 500-600 rounds through them in a single session. Using a suppressor, no oil and lots of mag dumps I've never gotten the thing to jam up. I don't really keep track of round count after a certain point, my gen 1 is probably close to that 10k round mark. Hope I don't start seeing the issues mentioned.
I have had the chance to shoot a gen1 in full auto which was pretty cool. The MPX was actually easier to keep on target than the MP5 in full auto we were shooting that day.
Feedback: https://www.ar-15.co/threads/151613-izzy
Do you guys load rounds differently for your 9mm pistols than you do your 9mm PCC?
"There are no finger prints under water."
Yup. Light bullets with a slower powder in a PCC compared to heavy bullets and a fast powder for pistol.
115s for PCC and 124s for pistol and 165s for revo.
You know I like my coffee sweet in the morning
and I'm crazy about my tea at night
Light bullets over more, slower powder better works with the platform I suppose, and is more efficient.
"There are no finger prints under water."
I've loaded both subs and non for my mpx and mp5s. They all worked well. Going to stick with subs going forward though. For my .45 PPC I just make a standard load.
Feedback: https://www.ar-15.co/threads/151613-izzy
Yes, with some caveats...it depends on how your system is set up. With 16" barrels, if you plan to run at top speed with light recoil, you want a faster powder. If you have a lot of cyclic mass, slower powder. In both cases, lighter bullets. But if you are running a 4 to 6" barrel, you can load them pretty close to pistol and not have any issues.Originally Posted by Irving
Slower powders can still have pressure high enough that you are opening the chamber at pressures that are too high. That is what leads to the case separations and extractor blow-outs. Fast powder, light bullet alleviates that issue for the most part. Accuracy might suffer a little bit since the SDs will be larger, but in most cases, will still be 3 or 4 times more accurate than a pistol. The faster powders also tend to run cleaner than the slower powders in PCCs. With the 90 to 115 grain 9mm bullets, it does help to go to HPs to get a little longer bullet to improve accuracy. Based on how some 9mm PCC barrels are chambered, some 9mm loads that might be great for your pistol won't even chamber in some PCCs. We have seen a lot of bullets left in the lands and an empty case with a powder shower at "Unload and show clear".
What about for an SBR 9mm with a 7-8 inch barrel?
Given the issues with Xtreme bullets, can you recommend any other (good) current sources for the 165's?
Been having trouble finding much of anything in the way of heavy 9mm jacketed/plated lately....
MarkCO,
Are you seeing anyone using the new(ish) MBX PCCs? Or CKArms PCCs? If so, good or bad?
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