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45acp mauser...a fun little headache

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  • tujungatoes
    Calguns Addict
    • Dec 2006
    • 7942

    45acp mauser...a fun little headache

    Attention C&R purists! This thread is not for you. Don’t read it. You’ll just get mad and tell me how I’m the biggest bubba ever and I will agree, but I won’t be sorry.

    69Mach1 said he wanted me to do a write up on this project. So here goes….

    About a year ago my good friend and co-conspirator grossekatz bought a gorgeous stock set from Rhineland arms for his PSL build. Later he clued me into the 45acp mauser conversion kit they sell. I immediately informed him that it was the stupidest idea on earth, and that I absolutely had to have it. Over the past few years I’ve really fallen in love with the idea of pistol caliber rifles. I’ve had a small ring Spanish mauser sitting around for years. The original bubba had decided that it was a good idea to remove all of the original receiver markings, cut the buttstock, and install a rubber but pad. Apparently sissy boy was having trouble dealing with the “massive” recoil of the 7x57mm mauser cartridge. But It still had a good looking bore on it, and I thought it would make a good donor to replace the shot out tube on my Chilean short rifle….blah blah blah backstory.

    So now I have the action and conversion parts but I’m short a barrel vise and action wrench. Mrlonewolf to the rescue!



    Profesor X was nice enough to let me use his tools, and after we got the wrench tight and everything locked up in 69Mach1’s 20 ton press…out came the 4 foot cheater bar.



    We soaked the barrel threads in penetrating oil for a few hours. Then I hung off that bar and with a “crack” the barrel came loose. WOO HOO!



    …I didn’t know it then, but this was actually going to be the easiest part of my project.


    Next came the task of installing the new barrel and setting headspace. According to the instructions form troup systems all you do is thread the barrel in, check headspace, and tighten the lock ring on the barrel. This is where I encountered my first problem with the Spanish 93 action. The supplied lock ring was too thick and wouldn’t let the barrel thread in far enough. So, not having a lathe I spent the next hour or so with several pieces of sandpaper and a flat piece of plate steel thinning the lock ring. Eventually I got to where I needed to be, and torqued the barrel and ring onto the action. Sweet! Now I have a barreled action and I’m ready to go home and finish my project with ease.
    Last edited by tujungatoes; 01-16-2012, 6:42 PM.
    sigpic
    Originally posted by Dr. Elky
    If your a man who wears white sunglasses, your probably a douche bag
    Originally posted by CSACANNONEER
    I've been know to cross dress and go the other way at certain events.
  • #2
    tujungatoes
    Calguns Addict
    • Dec 2006
    • 7942

    A few weeks later I headed on over to my favorite indoor range to test out the action.



    Yep, it works, and as expected I’m getting some pierced primers. No big deal Just have to take a file and trim/re-shape the firing pin. A few minutes and a couple test fits later. No more popped primers.



    I moved on to installing the 45 acp ejector and encountered another problem. It’s at this point that I start to realize this isn’t going to be nearly as easy as I thought. Once again the Spanish receiver was apparently just a bit different than your average mauser. Unlike the original the new ejector wraps around the rear receiver ring and back in. I tried it on my 98k and it fit perfect.



    On my project receiver…yeah, not so much.

    Last edited by tujungatoes; 01-16-2012, 10:03 AM.
    sigpic
    Originally posted by Dr. Elky
    If your a man who wears white sunglasses, your probably a douche bag
    Originally posted by CSACANNONEER
    I've been know to cross dress and go the other way at certain events.

    Comment

    • #3
      tujungatoes
      Calguns Addict
      • Dec 2006
      • 7942

      sigpic
      Originally posted by Dr. Elky
      If your a man who wears white sunglasses, your probably a douche bag
      Originally posted by CSACANNONEER
      I've been know to cross dress and go the other way at certain events.

      Comment

      • #4
        brassburnz
        Veteran Member
        • Nov 2006
        • 3553

        Looking good. Can't wait to see the finished rifle.
        NRA Life Member
        CRPA Life Member

        Comment

        • #5
          tujungatoes
          Calguns Addict
          • Dec 2006
          • 7942

          On to the important bits. Now I needed to cut the triggerguard to clear the magazine release, and fit and pin the magazine adapter into it. More happy dremel time for me.







          Now for the 3 holes and roll pins to secure the adapter to the triggerguard.

          sigpic
          Originally posted by Dr. Elky
          If your a man who wears white sunglasses, your probably a douche bag
          Originally posted by CSACANNONEER
          I've been know to cross dress and go the other way at certain events.

          Comment

          • #6
            r3dn3ck
            Banned
            • Feb 2010
            • 1900

            Welcome to the madness. I have the same project going right now on a swede action that had been bubba'd to hell and back.

            When you fix it to the stock, be prepared to make a spacer for the front action screw to pull the action up about 1/10", that'll help the mag clear the bolt as there was interference on mine. The kit is NOT perfect but it's damned close.

            My barrel is 27" bull profile and I'll be running .460 rowland brass trimmed to .45acp trim length (so I can have a .45acp chamber but run really hot loads in the rowland brass if I want). I've been talking to a guy on THR that's been running his loads to 35K psi or higher (I personally bet he's seeing over 45K) on .45acp brass. Thanks to the case being fully supported he's not seeing any pressure signs and gets 1800fps from ball.

            pic for the club:


            I thought about getting the barrel they offer but I wanted a lot more tube just for the weight. At 14lbs so far the rifle is VERY stable off-hand. I'm still waiting for my stock set to show up from Richards Microfit before I can assemble it but I need to get it chambered and set up for the savage type lock ring still.

            Comment

            • #7
              tujungatoes
              Calguns Addict
              • Dec 2006
              • 7942

              sigpic
              Originally posted by Dr. Elky
              If your a man who wears white sunglasses, your probably a douche bag
              Originally posted by CSACANNONEER
              I've been know to cross dress and go the other way at certain events.

              Comment

              • #8
                tujungatoes
                Calguns Addict
                • Dec 2006
                • 7942

                r3dn3ck I read your thread. Cant wait to see the finished product. I like the .460 rowland idea. I might work up some hot loads for this thing eventually, but really I just want another cheap fun steel plinker. Most of the time it'll probably just eat ball 45 ammo.
                sigpic
                Originally posted by Dr. Elky
                If your a man who wears white sunglasses, your probably a douche bag
                Originally posted by CSACANNONEER
                I've been know to cross dress and go the other way at certain events.

                Comment

                • #9
                  tujungatoes
                  Calguns Addict
                  • Dec 2006
                  • 7942

                  At this point I was ready to take it back to the range for a real testfire. So I put It all together packed up some magazines and headed out. Got to the range, loaded one round into the magazine…fed and fired. Yee mother effin HAW! Put in a couple more rounds and tried again. Now the rounds are taking a nose dive out of the magazine and binding on the lower portion of the feed ramp. WTF? I tried McCormick mags, Wilson combat, Mecgar, and I think a Colt. I tried shimming the action to change the angle…No dice. They all nose dive with more than 5 rounds in em no matter what.

                  So a couple days later I’m doing some reloading and Grossekatz walks in, picks up my rifle, stares at it for a few minutes, and says “why don’t you just make a feed ramp and weld it in there?”. I’m thinking…that’s so dumb it just might work And sure as sh*t it did. I just cut a small piece of 1/8” steel plate and zapped a couple TIG welds on the underside to secure it in the receiver. Now the rounds have more of a gentle slope coming out of the magazine instead of and abrupt change in direction.



                  At this point it’s still easily reversible if I find that it doesn’t fly, but from the testing I did yesterday it seems to feed nearly perfectly. As a bonus it also acts as a magazine stop. Before if you inserted a mag with some oomph it would sometimes skip the catch and end up going through the magwell and sticking out the top of the action.

                  Here's the (mostly) finished product.



                  I’ll be heading out to Angeles today to put this thing through it’s paces. Hopefully everything runs awesome and I can start thinking about refinishing it and fabbing an original looking steel butt plate to replace the ruber sissy pad and give it more of a military look. Wish me luck.
                  Last edited by tujungatoes; 01-16-2012, 10:14 AM.
                  sigpic
                  Originally posted by Dr. Elky
                  If your a man who wears white sunglasses, your probably a douche bag
                  Originally posted by CSACANNONEER
                  I've been know to cross dress and go the other way at certain events.

                  Comment

                  • #10
                    wash
                    Calguns Addict
                    • Aug 2007
                    • 9011

                    I get my old German pistols mixed up some times so I clicked on this expecting a .45 Luger project.

                    After some initial disappointment and reading through the thread, ehh congratulations?

                    It looks nice in the pictures, not Bubba.

                    I feel like you should always wear an early WWI German helmet with the spike and play polka music when you fire it. That way the rifle might make more sense.
                    sigpic
                    Originally posted by oaklander
                    Dear Kevin,

                    You suck!!! Your are wrong!!! Stop it!!!
                    Proud CGF and CGN donor. SAF life member. Former CRPA member. Gpal beta tester (it didn't work). NRA member.

                    Comment

                    • #11
                      Plywood
                      Member
                      • Jan 2010
                      • 377

                      Great write-up! I just got one of these kits and this is going to help a lot.

                      Do you know the measurement for your firing pin protrusion? On my K98, it needs to be 0.055"-0.065" I have an out-of-spec pin that measures ~0.045" that I' m hoping will work with .45 ACP. Thanks!

                      Comment

                      • #12
                        ptoguy2002
                        Veteran Member
                        • Jul 2006
                        • 3863

                        Nice.
                        This is on the list of things to do someday (after I move to a free state):
                        WTB: SWISS & German police trade in pistols
                        WTB: German made & proofed SIG P226R & P228R
                        WTB: Factory cutaway pistols & rifles
                        WTB: LAPD Ithaca M37 / CHP S&W / Other PD trade ins....

                        Comment

                        • #13
                          Noonanda
                          Veteran Member
                          • Oct 2005
                          • 3404

                          I might have a M-1916 buttplate, if you are interested let me know
                          "You see in this world theres two kinds of people my friend. Those with loaded guns, and those who dig... You Dig" Blondie from TGBU

                          Comment

                          • #14
                            r3dn3ck
                            Banned
                            • Feb 2010
                            • 1900

                            I have a swedish mauser buttplate if you need it. I won't use it... might fit.

                            Also... could you chop me up a bit of steel for a feed ramp? I'll be JB-welding it in instead of MIG'ing but would really like to have that mod. I'll ship ya the buttplate for free in trade and pay the shipping to me for the ramp.

                            My metal stocks are low and I don't have time to whittle on it or I'd think of making it myself. Besides... yours looks so good already. BTW.. thanks for reminding me to check my firing pin protrusion. If you get a chance to get proper numbers for what you're sitting at there I'd appreciate it.

                            Comment

                            • #15
                              69Mach1
                              Super Moderator
                              CGN Contributor - Lifetime
                              • Jan 2006
                              • 15032

                              Holy s***! This thing was fun as Hell to shoot today. Great job Toes.
                              sigpic
                              69Mach1
                              munkeeboi
                              TURBOELKY
                              antix2
                              WTSGDYBBR
                              tujungatoes
                              jmpgnr24K

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