PocketPistol

Walther sent me a replacement captured guide rod with lower power spring when I called saying I was having issues with low power factor rounds. The only mod the trigger needs is in the trigger safety spring if you have a very high grip.

I called Walther and they sent me red spring vs the unpainted spring that was in the gun at no cost (would have been $32 if they had charged me). The gun feels normal to rack now, vs. before when it felt unusually difficult to rack compared to my other pistols. I haven't yet shot it to see if it clears up my stove pipes I was having with my 130 PF ammo. I am happy with my Walther customer support so far, although I wish I could just buy an uncaptured guide rod so I could use a spring of my choice.

Thanks for the clarification. I am a PCC shooter buying this gun to try production and carry optics. I hadn't realized this change, not many production shooters around here.

How would the new trigger affect production? If I buy the SF then put in this trigger it will only be production legal after the new gun with this trigger has sold enough to be production eligible? Will it have a separate model number preventing that?

ATF said in 2017 that it isn't illegal to shoulder lacking other intent e.g. permanent attachment, removing strap, etc. Of course they can reverse this whenever they want as they are doing with bumpstocks. “With respect to stabilizing braces, ATF has concluded that attaching the brace to a handgun as a forearm brace does not ‘make’ a short-barreled firearm because … it is not intended to be and cannot comfortably be fired from the shoulder.” The letter continues: “Therefore, an NFA firearm has not necessarily been made when the device is not re-configured for use as a shoulder stock — even if the attached firearm happens to be fired from the shoulder.” I agree that uspsa should make it legal to use a brace, it simplifies carrying across state lines. It doesn't give the competitor any advantage vs. a stock. I have an MPX SBR I used in competition, but bought a JP with pinned and welded comp to avoid having to file paperwork when I leave my state.

My Red Hill holster shipped today, order placed 1/20. The more interesting thing is I ordered the holster after I told my dealer to place an order for the gun. I will have my holster Wednesday but no idea when I will get the gun. My dealer claimed it is unobtainium.

Oops, didn't read the notes. Notes not so obvious when viewed from smart phone. Thanks for the clarification. Anyhow, I ordered mine, so doing my part to get to 2000. Also ordered holster from Red hill, 30 day lead time. I would hope by the time I get my holster it it good to go... Josh

It is ready on production list. https://uspsa.org/productionlist Q5 Match SF (Steel Frame) .(41.6 oz.)

Have one on order. If I want to start in production but move to carry optics at some point, which mag capacity do I get? I assume the 17 round mags from the pro for in the base model? Which mag extension for CO? Where is the best place to buy mags for this thing?

I have both MPX and JP. MPX worked as long as I cleaned every match. The system is a major pain to clean. The JP is reliable with much less frequent cleaning and it cleans much easier. I like that the JP has tunable weights and springs, the mpx has alternate springs and adjustable gas valve from in lead we trust, but I found I could get the JP to have less dot movement through tuning. This was a surprise for a blow back gun.

I was wondering the same thing. Made A in pcc my first year in uspsa but it looks to be a serious climb up from here at the very bottom of A class. I would like to gain more practical pistol skills, especially those that would translate to 3 gun pistol, which is pushing me to consider a production switch at some point. Not sure when is the right time to make the jump.

If you goto https://uspsa.org/classifier-lookup/ you can type in a member number (assuming their privacy settings are not set) and see their results. Do that for a while and you can get a bunch of data... I don't have all the data, but I have a bunch of it - I don't have anything after October including the new classifiers since I stopped scraping since I got the data I wanted. My data shows that the average classifier score is 8% better on PCC. That is not weighted for the frequency a classifier is shot. I could do some analysis on that but haven't. Here are some theories based on my gut- -PCC shooters are not the ones picking the classifiers so they are not picking classifiers to shoot that are easier (here is where weighted average would be nice) -PCC is easier to pick up, but when people get good at it they move to open? -Best shooters are in open and they have not shoot in PCC -The nature of the classifier system encourages spray and pray --- if your score is 5% below your class it doesn't count. It could be that open average scores are lower because people are doing more spraying and praying, but they occasionally get lucky which gets them to move up the classifier level.

I am dying to know if they made any changes to the function of the gun (gas system?)... If so, are there any retrofit options for my existing MPX?

I had a request for distribution of shooter classifications. I have data for about 15,000 members (I hear there are about 30,000 members). Not currently too concerned about getting all the data, I think this is enough to draw some conclusions. I am also plotting "percent" and not "high percent" so someone who was a master but is currently shooting A will show up in my data as an A.

Here is a chart of popularity of stages and divisions (green popular, red unpopular) over roughly the last 3 years... I just have a sampling of data but trends should hold...

Per forum guidance, I won't be posting HHF's even though I have them and they are now published on the cell phone app. However, here is the percent change from the HHF update...Missing cells I don't have data for post HHF update so the cell is undefined. Green indicates the stage got easier, red means it got harder. The last row has the average change.

I have that data, but the problem is there are 56 combinations of ways people can shoot 3 of 8 divisions, and 28 ways people can shoot 2 of 8 divisions... I am not really sure the best way to present that data in a meaningful way? Plus, by the time I take that data, and divide it up into 84 bins, I am not sure if it is statistically significant?

Here is the data for all shooters I have scraped so far (again, only 20% of members) that are classified in 8 divisions..

Easy answer is to look at the life shooters whose data I already have. There is probably a better metric for what defines a seasoned shooters than life, but it is all the data I have at the moment. Open Limited Limited10 Production Revolver Single_Stack Carry_Optics PCC Max 99.9833 100 97.9607 100 99.8677 99.8923 97.3264 100 Average 62.39926 58.57738 55.30444 56.35329 49.5888 53.98289 50.93657 61.95755 I have been running my analysis on "Pct" field, not the "High Pct" field for the max/average comparisons. Am I correct that Pct is your average of your best 6 of your last 8 and high percent is your best 6 of any consecutive 8 in history? If so, my data is really a latest snapshot in time for all shooters whose data I have. Might be interesting to compare the difference between Pct and High Pct? Not sure what that would tell you. The larger this number, maybe the more you have to spray and pray? Don't know. I wonder if the lower average scores reflect when someone reaches a certain point in a division they stop and move to a different division? E.g., I got my A in revolver, so now I am moving to limited. I reached the point in limited I want, so I am moving to open?

I am a PCC shooter B class shooter and decided I wanted to do some dry fire practice and compare my dry fire performance with hit factor cut offs. Not so easy as it turns out. Unfortunately http://www.classifiercalc.com/ and https://azshooters.org/classifier does not have PCC data and it is unclear if data represents the recent changes in high hit factors. There is a calculator on the USPSA website but if you try to query more than 15 stages in tells you that you have queried too many, and shuts you down for an hour. Very obnoxious. Fortunately, you can calculate the high hit factors yourself if you have a pair of percentages and hit factors. Well, I wrote a python script to scrape the USPSA member classifications levels and results from A100000 (mid 2016)-A105000 (mid 2017) (1912 users) users and all the life users L135-L4537 (3889 users). I ignored expired users whose data shows up with an 'x'. This is only about 20% of the USPSA membership, but I think it gives me some interesting none the less. I could scrape more, but haven' taken the time to figure out where the start and stopping numbers are for each of these membership categories (A, B, CA, CAL, CL, F, FL, FY, FYF, HCL, L, RD, S, TY, TYF, etc.). If someone wants to do that, I am happy to scrape more data... The first thing I tried to answer is which division does the average shooter do the best in? Is PCC really easier than limited? Again this is only based on 20% of the membership. Open Limited Limited10 Production Revolver Single_Stack Carry_Optics PCC Max 93.2122 98.1042 91.1341 95.0249 76.6005 85.8647 91.4708 99.9841 Average 52.5649 46.2836 41.955412 47.383663 48.41808 42.88808503 48.51231235 57.4404 The results seem to show that the average PCC shooter is scoring higher percentages than all the other classes compared to their own high hit factors. Since PCC is introduced so recently, maybe results are being skewed by experienced people moving into PCC vs. other divisions that have new people starting there? Well, here is the data just looking at users who joined mid 2016 through mid 2017... Open Limited Limited10 Production Revolver Single_Stack Carry_Optics PCC Max 88.4506 90.2799 78.0854 95.0249 76.6005 77.9958 91.4708 99.9841 Average 51.1567 45.8634 40.186086 47.2301201 49.17671 42.48816879 48.5311964 57.5547 So not only are PCC shooters shooting 12% higher than limited shooters from the same time period, not a single annual member shooter who signed up between mid-2016 to mid-2017 has attained GM besides in PCC and Production. This is probably why the PCC hit factors were changed, right? Well I don't think so... I also scraped all the recent results for the above member accounts (only kept the results that were not "legacy" as legacy results don't have HF's). This got me about 52,000 scores. So for instance, in my data I got 74 scores of Carry Optics shooting 03-02 which fall into 2 groups, those hit factors before 6/28 (7.15), and those hit factors after (7.07). By doing some simple excel magic, I was able to pull out all the older HHF's, and newer HHF's for the 81 stages * 8 divisions minus a couple particular scores that seems like have not been shot (e.g. could not find a single revolver shooter shooting 06-07 among these ~6000 shooters). Anyway, after doing this, I compared the new HHF's with the old HHF's, then calculated the percent change for each class. The average percent changes are below... Open Limited Limited10 Production Revolver Single_Stack Carry_Optics PCC 3.1% 3.1% 3.1% 2.3% -3.1% -3.5% -4.8% -3.8% So Open, Limited, Limited 10, Production got net harder, but Revolver, SS, CO, and PCC got net easier, on average. Now, it is true there are stages that got much harder -- e.g. 06-05 got 27% harder for PCC shooters, but where 09-13 got 23% easier for PCC shooters... That is a big change... So what is next? Ideas - My thought is gather more data, and do some data analytics on the data to see what the distributions look like for each stage? For this I could use some help with what ranges of member numbers I need to pull in (e.g. what is the first A number, last A number, is the first member number formatted as A1, or A0001, etc.). The USPSA member sticky was useful, but outdated. I'd really like to understand the algorithm about how the HHF is determined specifically (e.g. is it the average of the 10 highest shooters, etc.)? This may become evident if I had all the data. For everyone who wonders what the point of this is, well, I got to teach myself python and learn more about USPSA HHF's than I really wanted to know... Anyway, something to chew on...