Brass Fetcher
Member
I imagine that Speer designed the 158gr bullets to be limited expansion and the 9x19mm bullet to expand a good deal more. Possibly, one bullet is used for hunting and the other for SD...
In any event, we are planning on testing the same gun/round against heavy denim. I'm interested in the expansion characteristics of this bullet, as tested. It appears as though slightly greater velocity would have bent the jacket segments back further, giving much better penetration. This test provides an example of the importance of testing a load in the gun that you are intending to fire it in... I recall reading the Speer results of this cartridge out of a 4" Glock 19... 12" of penetration depth in bare gelatin and the jacket looked like it was folded back like a normal Gold Dot...
Look for more testing of this round in the near future.
In any event, we are planning on testing the same gun/round against heavy denim. I'm interested in the expansion characteristics of this bullet, as tested. It appears as though slightly greater velocity would have bent the jacket segments back further, giving much better penetration. This test provides an example of the importance of testing a load in the gun that you are intending to fire it in... I recall reading the Speer results of this cartridge out of a 4" Glock 19... 12" of penetration depth in bare gelatin and the jacket looked like it was folded back like a normal Gold Dot...
Look for more testing of this round in the near future.