I'm by no means an expert on Browning Hi Power pistols, but I heard on the web (so you know it must accurate) that they made some in .357 sig. I seem to recall that the .40 cal was bad about battering the frames, and I can't imagine that a super round like the sig would be gentle on it at all. I know it's stretches the limits on most any gun it's chambered in, and the HP was essentially built around the 9mm then adapted to the .40 s&w with some what interesting results early on. I am pretty sure that this is just a web rumor, but I figured I would ask some more educated folks than me before I pass final judgement. Thanks again, your oil trash friend.

Hello. So far as I know FN has not offered the Hi Power in .357 SIG. There are aftermarket .357 SIG barrels available for use in the .40 Hi Power to convert the forty to that caliber. I'm not interested in such conversions and have not kept up with it but I think BarSto and EFK Firedragon offer such barrels or did. Like I say, I've not kept up with it.

The conversion is only done on the 40-caliber Hi Power with its wider, heavier slide and 20-lb recoil spring and barrel having an extra locking lug over the more slender 9mm version of the pistol. Since the original 9mm version of the pistol didn't stand up well to the extra "oomph" of the .40 S&W, FN thickened the slide, added the extra barrel lug, heavier recoil spring and harder, quality cast frame so that the forged frame's softer rails wouldn't warp or crack. (Reportedly, this could cause major breakage at as few as 2500 shots on the forged frame pistols that had been used for 9mm Hi Powers for years.)

I have not owned one of the .357 SIG conversions as I am well-served with 9mm, but correspondence with folks who do have not indicated any problems with longevity. The primary complaint I've heard of seems to be feed-reliability with some loads. That said, most seem to have no problems whatsoever. I am not sure how well-regulated the fixed sights set for the forty would be with the three-fifty-seven.

Best.

Wow...the Hi Power guru himself! If anyone wants to know anything about Hi Powers, Stephen is the man!

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Thirty characters. Exactly...

Hello and thanks very much, but there are quite a few aspects to the Hi Power that I just flat do not know. I have never been much of a collector or "historian" on these guns and their variations as I simply prefer using the things and I am certainly not a gunsmith...just another "addicted Hi Power user" and have been for the past forty years.

Best and good shooting.

Wow. I hope I'm still shooting actively and enjoying it in 40 years lol. Thanks for your advice. I appreciate it.

I don't know anything about the .40 S&W Hi Powers, but I do have a couple conversion kits for .41AE in the 9mm HPs and shot them quite a bit doing testing and load developement. I never experienced any damage to the pistol but eventually switched to a 1911 platform due to bullet compatability issues.

I feel the BHPs are a great firearm, in any caliber, and are one of the best fitting, ergonomicaly.

I have a HP practical model in .40S&W and like it quite a bit. The biggest complaint from most who didn't like it was the stout recoil spring in chambering the rounds/retracting the slide by hand.

It's the most accurate and comfortable shooting .40 I've ever owned. The .40 seems 'snappy' to me in the plastic pistols but the difference in weight, and the got-it-right-the-first-time grip angle and lower bore-axis to hand ratio on the HP makes it a pleasure to shoot. The ability to utilize truncated hard-cast lead slugs that shouldn't be used in the polygonally rifled barrels of other models is a plus for me, too, as a re-loader. As a stock open site gun for racks of steel plates I like it better than my 1911's and that's saying something for me.

I always thought the .40 HP got a bad rap.