44 Magnum (1230 fps), Large Hollow Point, BHN 8.0, Bare Gel (PC HP Test)

(This video was first posted to YouTube on June 2, 2017.)

Shooting the 44 Magnum cast with the large round hollow point, 1:40 alloy with a BHN of 8.0 into Clear Ballistics Gel from my S&W 629 with a 3″ barrel. This series is a long experiment testing powder coated cast lead hollow point bullets made from various alloys and fired at various velocities.

Consolidated test results: https://docs.google.com/spreadsheets/d/1Tb_gBX5ALiPbMYg_qdvBiUV-fNaLln0r18MIqJXTjrM/edit?usp=sharing

The 44 Keith SWC mold is the “MP 432-256 PB HP 4 cav” mold from https://www.mp-molds.com/
Eastwood Mirror Red Powder: http://www.eastwood.com/hotcoat-powder-mirror-red.html

 


Find the entire playlist here: https://thereloadersnetwork.com/playlist/powder-coated-cast-lead-hollow-point-bullet-testing-lob/

—————–
“full retard” clips from the movie Tropic Thunder (2008)

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aaron
aaron
8 months ago

Why is it when we test things it seems like we sometimes find more questions then answers?🤔 the bright side…… more testing!👍😁

CharlieBrassStuffer
CharlieBrassStuffer
8 months ago

I’m guessing that the missing PC on the drive bands is because the soft lead was scrapped off in the forcing cone because the soft lead tried to obturate in the cone rather than size?
Is this a good example of exceeding the working pressure of the lead? Do the bases of the recovered casts show some concave rather than flat?

CharlieBrassStuffer
CharlieBrassStuffer
8 months ago
Reply to  Loads of Bacon

Looks like the drive band PC coating & some underlying lead has been pushed down, scraped down, to form the skirt that protrudes past the bases. It’s hard to tell with the light reflection on casts no’s. 1 & 2’s bases but it does look concave. I’m thinking that the pressure has plasticised the lead.

Jerry 1911
Jerry 1911
8 months ago

At least the 2 rounds that you recovered expanded… somewhat. And they weren’t complete pass-through.
You may get similar results with your rifle, as you experienced with the 29. The BHN being 8, you may experience the same leading of your barrel on your rifle, too?