Old 10-10-2007, 06:21   #1
Noslack71
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Browning Hi- Power Question

Gentlemen:
I have a Browning HP in .40S&W that I purchased around 1997. I have put about 4-5000 rounds through it without any problems. A fellow that I have been shooting with tells me that Browning created the .40 during this time frame (1990-1999) to fill a market void. The pistol was not engineered to be a .40. It is (according to this gentlemen) a 9mm pistol that was hastily put together around a .40 barrel and, the frame was not designed for the added stresses of the .40 cal rounds. He suggested that, I send it to Bar -Sto and, have a 9mm barrel put into to the pstol so, that the caliber round it shoots matches with what the pistol was originally designed to shoot. I have done some rsearch and, the standard 9mm magazine seems to fit though, I obviously did not test the magazine fully. I have used the Google-Fu a bit and, have not found a great deal of information on ths topic. The possibility exists that my search parameters are inadequate for the information I am seeking. I did see an article in a commercial gun magagzine that alluded to the possibility of this being a problem. I am somewhat sceptical of the agenda in regards to the information in those commercial publications. I use the pistol primarily for home defense and, occasionally a carry gun. Currently, I run anywhere to 200-400 rounds per month through the pistol and, those are primarily commercial ball ammunition. Is this gentleman correct about the Brownings .40 HP's manufactured during this time frame (1990-1999)? With the relativly low round count that I put through the pistol, could this level of use lead to stress problems and, or some type of catostrophic failure? Does the fix he suggested sound like a reasonable cost-benefit fix? (It is about $250.00 and a six to eight week wait). This is not the only home defense system I have avaliable. Any experience, suggestions or insights about this issue that any of you miht have have and, would be willing to share would be appreciated. Thank you for your time!

Noslack
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Old 10-10-2007, 09:39   #2
The Reaper
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I am not a BHP expert, but I would avoid any .40 (+P) ammo, replace the springs regularly, and keep it as is.

The breech face is larger on a .40 than a 9mm, so the slide is not going to be correct for the 9mm, and may induce malfunctions. The external extractor may hold the round on the breech face and get positive ignition, or it might not. I would not risk it.

Bar-Sto would probably replace the barrel and weld up the breech face and recut it. For that money, you could buy a 9x19 BHP and retire the.40.

IIRC, there was some discussion about the slide speed, as early manufacturers did not have the required weight in a 9mm slide to deal with the .40 recoil impulse, and later, they started adding more mass to the slide, as well as using stronger springs.

The best BHP smith I know is Wayne Novak, you might call his shop and get his opinion, if you are interested in getting some work done on it.

TR
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Old 10-10-2007, 09:55   #3
Snaquebite
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Quote:
I am not a BHP expert, but I would avoid any .40 (+P) ammo,
+1
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Old 10-10-2007, 10:41   #4
NousDefionsDoc
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What TR said. If you are that concerned about it, sell the .40 and buy a 9MM.
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Old 10-10-2007, 12:53   #5
gunnerjohn
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TR's recommend about Novak is right on. The .40 Hi-Powers that browning built were not totally a void filler. If you notice on the pistol that the slide is fatter than a 9mm version. This can be identified by a milled slot on the left side to accomodate the slide stop. Browning determined that the added weight was needed for the .40 cal. TR's mention about the breech face was correct too in that trying to just change barrels will create pressure issues without having the rear of the case protected. One other source for information is Bill Laughridge at Cylinder & Slide Shop. A phone call to the shop will get you more information than you could ever imagine.
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Old 10-10-2007, 13:50   #6
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If memory serves, I believe that some of the custom shops (novak, C&S, YoBo) would fit a 9mm Barrel to a .40 HP that would allow you to interchange between the two calibers. I also believe that the .40 has an additional locking lug on the top of the barrel.

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Old 10-10-2007, 17:29   #7
Noslack71
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Thanks

Gentlemen:
Thank you for taking the time to reply, I appreciate your expertise and information. You folks have given me the information and POC's I needed to consider the options in an objective manner. Again, I appreciate your time, experience and, suggestions.

Noslack
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Old 10-11-2007, 16:34   #8
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Bill Laughridge at Cylinder and Slide is a BHP wizard as well.

Been at it forever. 2005 Pistolsmith of the Year from the APG.

Link: http://www.cylinder-slide.com/

fwiw.
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