BHSS clearly pointed out in one of their evaluation episodes that based on its "slide rails inside the frame" design BHPs can freeze up after extended periods of firing when the slide heats up & expands compared to the frame temps.
That also happened to the SA-35 they tested & they had to let the pistol cool down, slow alittle space between the slide & frame is normal.
The BHP isn't like a 1911 (slide rails on outside of frame) where you can tighten the slide/frame abit, but then again the same thing can happen there. I've lost count on how many expensive 1911's I've seen freeze up in IPSC shoots because they were too tight.
My .02
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