Converting jsp into sjhp

[fredj338]

I was working on a theory about very heavy bullets in 9mm. It stands to reason that I didn't have a large choice of heavy bullets in 9mm. And loading data is as scarce as hen's teeth.

I found two. 165 gr. FMJ and 158 SWCHP

I flattened the nose of the 165 grain and drilled a hollow point into the end. Shot it into wet pulp One bullet expanded to a nice .6". Others not at all. Totally unreliable.

Next I tried the 158 grain SWCHPs. Again, total failure. The only one that expanded wasn't any larger than the diameter of the 9mm bullet.

Without good max loading date for that weight, I was getting about 850 fps which SHOULD have been enough to expand. (I was trying to emulate a .45 acp bullet)

It's fun to experiment, but for actual SD duty I'm going with something that is very thoroughly tested by more than a few parties.

The 158 grain jobs

The older style jhp need impact vel up around 1000fps. A heavy, soft lhp will likeky expand around that 900fps mark if the hp os large enough or designed correctly.

 

[rwsmith]

Thanks...

The older style jhp need impact vel up around 1000fps. A heavy, soft lhp will likeky expand around that 900fps mark if the hp os large enough or designed correctly.

I was hoping for SOME results but almost zero results was really disappointing. I was hoping that I could get expansion similar to the way a .45 acp acts at around 830 fps. It quickly became obvious I was going to need some more velocity. I had loads for Power Pistol and Unique which gave the best velocities but didn't have any idea what the max load was. I inquired some manufacturers and was told they didn't even test those bullets. Having such disappointing results I didn't think it worthwhile to delve into the unknown. I may revisit this but I'm letting it stew on the back burner for a while. Maybe I'll get some inspiration.