Well a friend of mine who is a gunsmith fired my 16" sterling sporter SMG through a chrono with some walmart PPU 115gr FMJ I gave him. Results? Glock 19 Average: 1000 FPS, Sterling SMG Average: 1230 FPS.
That's a 230 FPS difference from 115 FMJ. That exceeds many +P loadings of the same weight, in standard pressure form.
I have a list of cartridges to fire through both weapons, to see the different velocities, and to use ballistic gelatin ion the next test to compare penetration from the two. I know a +P+ 147 grain can penetrate less then a standard pressure 147 grain due to violent expansion, however from the longer barrel I'm curious if the pedals would just be pushed back on the bonded pulled and penetrate deeper.
If you have any cartridges you would like to see tested in this scenario, let me know.
So far I have these to test: Chrono through SMG and pistol, into gel.
Hornady Critical Defense 115gr
Hornady Critical Duty +P 130gr
Atomic Ammo +P 124gr
Barnes TAC-XP +P 115gr
Buffalo Bore +P+ 95gr BSCHP
Buffalo Bore +P+ 124gr "Penetrator" FMJ-FN
Buffalo Bore 147gr Subsonic
Underwood +P+ 147gr
Gold Dot 147gr
Gold Dot +P 124gr Short Barrel
Hertzingers Nylon Jacket 115gr TNJ
Remington Ultimate Defense (Golden Sabre) 124gr
Liberty +P 50gr
SBR 147gr Tracer FMJ
SBR 158gr Tracer FMJ
SBR +P 158gr FMJ
PPU 115gr FMJ
Fiocchi non-jacketed 115gr lead
That's a 230 FPS difference from 115 FMJ. That exceeds many +P loadings of the same weight, in standard pressure form.
I have a list of cartridges to fire through both weapons, to see the different velocities, and to use ballistic gelatin ion the next test to compare penetration from the two. I know a +P+ 147 grain can penetrate less then a standard pressure 147 grain due to violent expansion, however from the longer barrel I'm curious if the pedals would just be pushed back on the bonded pulled and penetrate deeper.
If you have any cartridges you would like to see tested in this scenario, let me know.
So far I have these to test: Chrono through SMG and pistol, into gel.
Hornady Critical Defense 115gr
Hornady Critical Duty +P 130gr
Atomic Ammo +P 124gr
Barnes TAC-XP +P 115gr
Buffalo Bore +P+ 95gr BSCHP
Buffalo Bore +P+ 124gr "Penetrator" FMJ-FN
Buffalo Bore 147gr Subsonic
Underwood +P+ 147gr
Gold Dot 147gr
Gold Dot +P 124gr Short Barrel
Hertzingers Nylon Jacket 115gr TNJ
Remington Ultimate Defense (Golden Sabre) 124gr
Liberty +P 50gr
SBR 147gr Tracer FMJ
SBR 158gr Tracer FMJ
SBR +P 158gr FMJ
PPU 115gr FMJ
Fiocchi non-jacketed 115gr lead