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Discussion Starter #1
Hello to all,
I finally got a HK! Wear a Glock at work and I have played around w/ Sigs,1911s, and others. The USP 40 I got just feels great!! Dreamed about a HK for a long time and finally got a good deal (so I think). I purchased a HK USP 40, night sights, 3 mags (1pre ban,2 LE marked), the case and manual for $400. About 90-95% finish left. A police trade in from a small Iowa dept. Anyway, my questions are as follows: Can I shoot lead in my HK? I know it has the poly rifling like a Glock. Glock says no and you will blow yourself to little bits if you shoot lead in their guns, or so people say. I have heard nothing about HKs acting snotty to lead. 2) Can I change my 40 USP to 357 sig by changing my barrel like a Glock or Sig? Or is there some other things you must do? Finally, I believe my gun was produced in 1994. I cannot convert this to the LEM trigger can I ? Thanks, and I look foward to seeing what I can do with her.
 

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Hello to all,
I finally got a HK! Wear a Glock at work and I have played around w/ Sigs,1911s, and others. The USP 40 I got just feels great!! Dreamed about a HK for a long time and finally got a good deal (so I think). I purchased a HK USP 40, night sights, 3 mags (1pre ban,2 LE marked), the case and manual for $400. About 90-95% finish left. A police trade in from a small Iowa dept. Anyway, my questions are as follows: Can I shoot lead in my HK? I know it has the poly rifling like a Glock. Glock says no and you will blow yourself to little bits if you shoot lead in their guns, or so people say. I have heard nothing about HKs acting snotty to lead. 2) Can I change my 40 USP to 357 sig by changing my barrel like a Glock or Sig? Or is there some other things you must do? Finally, I believe my gun was produced in 1994. I cannot convert this to the LEM trigger can I ? Thanks, and I look foward to seeing what I can do with her.
1) you are not supposed to no. However, IF you do clean it real good every 100 rounds or so and it should be ok. SHOULD.
2) Not that I am aware of no.
3) Go to the handgun section and look at the sticky posted by BIG BORE for LEM instructions. You will actually have to look inside of the pistol to answer your question. All the info you need is there though.
By the way nice deal on a used HK congrats.
 

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Congratulations. You wont look back.

As far as the lead in USP's are concerned, I dont know what the big fuss is about. I've fired 600 rounds of lead reloads through my USP40c in one day without any cleaning in between. I took it back to the range the next day (not cleaned) and put another 150 odd lead rounds through it.

To me thats a sign of excellent reliability because that thing was DIRTY EVERYWHERE when I eventually opened it up (thats the main reason why I only shoot copper jackets these days).

There was no trace of the rifling "clogging up". I was under the impression that lead is discouraged due to build up at the chamber rim where the case is supposed to seat, causing the slide not to go into battery or causing bullet setback?
 

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Welcome and enjoy!!! You made a great buy on that USP 40S&W. is it the f or full-sized one or a c compact one? I do think if it's the USPf you can get a 10mm conversion done and I also know that you can get the 357sig barrel.

Happy & safe Shooting!! TJ
 

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Discussion Starter #5
Thanks to all that answered. I am going to try a little lead then clean. Thanks for telling me that i got a good deal. I figured I did but, a little affermation is always nice. The company I got it from has two more for around the same price. Also, they are getting in about a dozen 9mm fullsized USP's from a SWAT team trade-in around the beginnning of the new year. Just a heads up for anybody interested. Again, thanks and take care.
 

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Discussion Starter #7
When they get into the shop I'll let you know. Sounds like they traded them in for S&W 1911s.
 

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A good hard lead bullet like Oregon Trails LaserCast shouldn't have any problem with leading in any barrel. Theoretically, the base of the bullet may not obdurate enough to seal well for optimum accuracy/performance, but the proof is in the pudding. Try a few and see, you won't hurt those hammer forged barrels I promise.
 

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Welcome the the wonderful world of HK and to the boards. From what I understand lead is not recommended for HK's polygonal bore. But if you do use it, clean it with this. Great stuff. I Use it. It works.

http://www.big45metalcleaner.com/
 
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