Toolndie7 Posted February 9, 2015 Report Posted February 9, 2015 I am looking for somebody willing to give me a dimension of a 7.62 model.... I am building a 10mm ar pistol and thought about running one of these to keep my pressure up. I wanted to know the outside dimension of the internal "cone" to know if I would have enough material to bore it out for a 10mm? I may end up making my own if I have to but would rather just buy one. Thanks for any info.
Robocop1051 Posted February 9, 2015 Report Posted February 9, 2015 I have a LWD .40/10mm comp that I planned on using for a similar build. If you ditch the "pig" concept and want a comp instead,I'll let it go cheap. It's still brand new.
Toolndie7 Posted February 9, 2015 Author Report Posted February 9, 2015 I have a LWD .40/10mm comp that I planned on using for a similar build. If you ditch the "pig" concept and want a comp instead,I'll let it go cheap. It's still brand new.Thanks Rob, but Im not sure that would do much for my back pressure.
Robocop1051 Posted February 9, 2015 Report Posted February 9, 2015 Thanks Rob, but Im not sure that would do much for my back pressure. Oops. Wrong button... Lol. It won't do anything for your back pressure. I was just providing you an alternative option... especially since the pistol caliber barrels (that I know of) aren't threaded for a 1/2x28 or 5/8x24 device. Most pistol caliber builds are "blow back" and not direct impingement. Not much a pig will help with in that fact. If you are building with a RMWxtreme upper, then you'll likely have a custom DI system and then a pig may be of help again... especially if you decide to shoot some lighter .40s&w stuff through it.
Robocop1051 Posted February 9, 2015 Report Posted February 9, 2015 Oops. Looks like I was kinda wrong. 9mm, and .357sig = 1/2x28 .40s&w and 10mm = 9/16x24 .45acp = .578x28
Toolndie7 Posted February 9, 2015 Author Report Posted February 9, 2015 Oops. Wrong button... Lol. It won't do anything for your back pressure. I was just providing you an alternative option... especially since the pistol caliber barrels (that I know of) aren't threaded for a 1/2x28 or 5/8x24 device. Most pistol caliber builds are "blow back" and not direct impingement. Not much a pig will help with in that fact. If you are building with a RMWxtreme upper, then you'll likely have a custom DI system and then a pig may be of help again... especially if you decide to shoot some lighter .40s&w stuff through it. I am running a DI barrel from Ron Williams and I have not threaded the barrel yet, Still exploring my options for a muzzle device. Would be cool to run 40 through it though
Robocop1051 Posted February 9, 2015 Report Posted February 9, 2015 Would be cool to run 40 through it though Cheaper too! I just watched a video of a guy shooting .40 in his Glock20. He says he's got hundreds through the pipe with no issues. It's not quite as accurate, but accurate enough to plink with.
Toolndie7 Posted February 9, 2015 Author Report Posted February 9, 2015 Cheaper too! I just watched a video of a guy shooting .40 in his Glock20. He says he's got hundreds through the pipe with no issues. It's not quite as accurate, but accurate enough to plink with. Im already reloading for 10mm anyway so no biggie. Im kinda anxious to see what I can work up to with a closed bolt DI setup. Heard of guys running like 14-15gr of AA#7 :eek:
98Z5V Posted February 10, 2015 Report Posted February 10, 2015 The cone in the KX3 is almost the diameter of the whole device. It threads in from the front, so it's just slightly smaller than the OD of the whole thing. There's plenty of room to machine the hole up to 3/8"~10mm.
Toolndie7 Posted February 10, 2015 Author Report Posted February 10, 2015 (edited) Edited February 10, 2015 by Toolndie7
98Z5V Posted February 10, 2015 Report Posted February 10, 2015 Yep, even if you lose that whole straight section on the inner end of the cone, it'll still do it's job - cone retaining the blast. Need the outer diameter of that straight section on the inner end of the cone? I'll take apart a KX3 today.
Toolndie7 Posted February 10, 2015 Author Report Posted February 10, 2015 Yep, even if you lose that whole straight section on the inner end of the cone, it'll still do it's job - cone retaining the blast. Need the outer diameter of that straight section on the inner end of the cone? I'll take apart a KX3 today. That would be great Thanks
blue109 Posted February 10, 2015 Report Posted February 10, 2015 (edited) on my 5.56 pistol, I'm running a krink brake that cost me $26 shipped from amazon. my buddy has a piggy on his pistol. both are 7.5, both running standard carbine buffers and braces. both brakes look similar externally and internally. we fired them back to back and didn't notice any difference between them from the shooter or the bystander perspective. might be worth it to find a cheapo 7.62 brake to experiment with before you pony up Edited February 10, 2015 by blue109
Robocop1051 Posted February 10, 2015 Report Posted February 10, 2015 I have the same krink (3 piece) break on a 7.62x39 build that I've been working on.
Toolndie7 Posted February 12, 2015 Author Report Posted February 12, 2015 (edited) Fuuck it, I whipped this up to see if it does what I want it to. If it works I will work on making it look good Edited February 12, 2015 by Toolndie7
Robocop1051 Posted February 12, 2015 Report Posted February 12, 2015 and this is why I hate machinists... My level of jealousy never decreases.
Toolndie7 Posted February 13, 2015 Author Report Posted February 13, 2015 Went to the range this morning, ran about 15 rounds and the gas system cycled with authority. I'm still working on the mags so I had to finger the bolt catch. But the bolt unlocked, blew back and easily caught the catch. I may chop a little off the existing 10" barrel length. Now I have to work on feeding it. we will see....
sketch Posted February 14, 2015 Report Posted February 14, 2015 Wait what...? are you making mags too?
unforgiven Posted February 14, 2015 Report Posted February 14, 2015 and this is why I hate machinists... My level of jealousy never decreases. <lmao> Skills bro! Serious skills,outstanding brother. <thumbsup>
Toolndie7 Posted February 16, 2015 Author Report Posted February 16, 2015 Wait what...? are you making mags too? wouldn't say making them but they will definitely be custom. Although I just slowed this project down a bit, just picked up a WASR 10 AK under folder for $400 out the door
Toolndie7 Posted February 23, 2015 Author Report Posted February 23, 2015 wouldn't say making them but they will definitely be custom. Although I just slowed this project down a bit, just picked up a WASR 10 AK under folder for $400 out the door Correction, Its actually a century arms Polish AKMS
skeeter7 Posted February 24, 2015 Report Posted February 24, 2015 That came out awesome buddy. Looks even better in person and I'm sure you'll just make it look even better before being done with it. Your work never ceases to amaze me, that's for sure. Can't wait to see that project completed...
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