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California handguns Discuss your favorite California handgun technical and related questions here. |
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#1
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Hk Usp 10mm barrels
Anyone interested? A vendor on hk pro is going to produce barrels
http://www.hkpro.com/forum/showthread.php?t=389817 Quote:
Last edited by johnwin84; 09-05-2017 at 2:04 PM.. |
#2
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I would've absolutely been interested, but it seems too much trouble due to:
1) Can't eject the unfired 10mm round through ejection port 2) Can't use HK mags & have to buy STI mags 3) Dremel the STI mags 4) Lose last round hold open 5) Mags wouldn't be flushed
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#3
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Woah - cool.
I've got a .40USP I never shoot anymore and a whole lotta 10mm
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#7
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Just finished this conversion recently using a police trade in in 40. I was successful in using HK mags and barrel. It shoots PPU with the stock recoil spring, but recommend a heavier recoil spring if you get into underwood or norma loads.
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#8
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who reamed the barrel for you and how did you modify the mags? i would be interested in going this route instead.
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#11
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Quote:
As far as mags it was a fluke -- I bought HK45 mags for my usp45c. The HK45 mags fit and hold 10mm since they are nearly the same length as 45acp. They fit in a full size USP, AND is ALL STEEL. Might even solve problems for using the HK45C extended magazine release with plastic magazines The magazines ARE NOT drop free however, and the feed lips need to be tweaked a bit to feed correctly. I think with some sanding to enlarge the magazine well and some closing of the feed lips you could have a 100% all HK USP in 10mm. If you want to try it for yourself I'm still tweaking with it. You're welcome to try it out if you want. Just buy ammo. Last edited by Romeo_alpha01; 09-06-2017 at 4:11 PM.. |
#12
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#13
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If you have the elephant foot floorplates you will have to trim them to fit. The HK mags may interfere with the slide lock, but it consistently holds open on the last round. You could forego sanding the magwell if you don't care if it's drop free. Judging from my measurements you should sand on the sides of the magwell, and at the rear near the hammer spring. Whip out the micrometer and compare. |
#14
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Quote:
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#15
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Any of the current magazine options for this conversion does force CA residents to use a mag block of some sort.
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#16
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Yeah, but other than that it's no trouble at all!
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#17
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Quote:
2) HK45 magazines work but are really snug. You can sand the magwell so it drops free like normal, and it doesn't require much sanding within the magwell. 3) See number 2. STI mags are expensive and it still sticks out. HK45 mags are common enough, and with the elephant foot, could be trimmed for flush fitment. 4) HK45 mags does have last round hold open. Depending on the year of your weapon you may need to file off and bend a little bit on the feed lips so it doesn't slam too hard on the slide release. 5)See number 3. Once you shoot the USP in 10mm it's range crack. Super fun gun, ALL HK components with little work, and something that can be had for little money, with a platform that's legendary in reliability. |
#18
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sorry to necro post but this looks like its still moving foward.
I for one would love to have a 10mm barrel for the .45 if thats possible.
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NRA Endowment Life Member USMC 2001-2012 Never make yourself too available or useful...... Semper Fidelis John Dickerson: What keeps you awake at night? James Mattis: Nothing, I keep other people awake at night. |
#20
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I am torn if I want to get a .40 and do that conversion or be one of the guinea pigs and do the .45
I really think it will work with the .45 just like how it does for the glock 21 to 10mm conversion.
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NRA Endowment Life Member USMC 2001-2012 Never make yourself too available or useful...... Semper Fidelis John Dickerson: What keeps you awake at night? James Mattis: Nothing, I keep other people awake at night. |
#22
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im doing the .40 and my buddy is doing .45. The barrel, spring and mag are going to cost me more then what I paid for my usp. I like the proven route so went with 40. If the 45 works out it will look like a factor gun and alot more people would be interested in buying it.
Last edited by johnwin84; 12-11-2017 at 12:54 PM.. |
#24
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saw that....whats the point? Why not just shoot .45 super in your USP without any modifications? I've seen a couple guys doing they for a backup big bear gun with hardcast loads.
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#25
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Quote:
.
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Be sure to ask your doctor if depression, rectal bleeding, and suicide are right for you. In the United States a person's expertise on a subject is inversely proportional to their knowledge of the subject: The less they know about something, the more they become an expert on it. I am being held hostage in a giant insane asylum called Earth. |
#26
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Update on my USP 10mm:
So I tested mine during a BLM shoot over the weekend and would like to notate a few things: -hk45 full size mags do not drop free unless you remove 0.5mm from the front and back of the magwell -hk45 locks the slide back on empty, and locks into the factory mag release (running HK45c mag release, so trimming the locking piece slightly may be of interest to some of you, mine is a KE date code) -hk45 magazine feed lips need to be closed a little bit so the rounds don't nose up so much (I'm talking very small amounts, I tapped the opening closed by using a brass punch over the top of the opening and love tapping the gap closer. You may have to dremel a little bit of the rear feed lips to allow the rear to close up) -if using aftermarket HK45 mags, understand they may actually be a little larger than factory mags (they don't drop free in my USP45 compact unlike the factory hk45 magazines) My setup is as follows: -Factory HK .40 barrel reamed to 10 ($80 labor) -Clone HK45 magazines from keepshooting. ($9-14 per mag) -HK45C mag release -Wolff 18lb recoil spring I've tested the following rounds from weakest to strongest -PPU 180gr JHP -SIG 180gr FMJ -Federal Hydrashok 200gr JHP Without modification to the recoil spring and mag you will more than likely experience malfunctions 50% of the time. The malfunctions become more apparent as the magazine begins to lose spring tension from going empty. Shooting impressions: extremely manageable, much akin to shooting a USP45. When I'm completely and confidently done fine tuning everything I'll post measurements and numbers for anywho interested in doing this.
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#27
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I was actually thinking about buying a barrel for the Elite .45 and re-chambering for 460 Rowland. Port the part of the barrel that extends past the standard USP slide.
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#28
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I think im going to take the plunge on the 45 to 10mm conversion.
Even though I dont have a USP 45 yet a friend wants to sell me one for $650
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NRA Endowment Life Member USMC 2001-2012 Never make yourself too available or useful...... Semper Fidelis John Dickerson: What keeps you awake at night? James Mattis: Nothing, I keep other people awake at night. |
#29
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took the plunge and waiting to see..
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NRA Endowment Life Member USMC 2001-2012 Never make yourself too available or useful...... Semper Fidelis John Dickerson: What keeps you awake at night? James Mattis: Nothing, I keep other people awake at night. |
#32
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$1200 to shoot 10mm? Hahahahahahaha. Thanks for that.
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#34
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Quote:
hkmp5@empowering.com Sent from my Pixel 2 using Tapatalk |
#35
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So the 45 profile did not work and I am going to go for the 40 profile.
Anyone else get some shots downrange?
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NRA Endowment Life Member USMC 2001-2012 Never make yourself too available or useful...... Semper Fidelis John Dickerson: What keeps you awake at night? James Mattis: Nothing, I keep other people awake at night. |
#36
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Quote:
Right now I'm working on a 45 ACP 200 grn LSWC hard cast that will be @ 1,050-1,100 that will work reliably in all standard 45 ACPs from Glocks, Kahrs, Colts, HK, etc
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