Chronograph-ed some .357 Sig / Auto loads

General Firearms Reloading & Ammunition
1

Yea, I call it .357 Auto.

Mild weather, 70 degrees, overcast, a little humid.

From 10 ft away with ProChrono. Gun is a Glock 32 .357 4 inch barrel.

5 rnds ea.

Georgia Arms Reloads 125 gr FMJ

High 1298 fps
Low 1282 fps
Average 1291 fps
Extreme Spread 16 fps

Georgia Arms Gold Dots 125 gr JHP

H. 1404
L. 1275
A. 1364
ES. 129

Remington 125 gr JHP (white/green box)

H. 1364
L. 1291
A. 1325
ES. 73

Hornady XTP JHP 147 gr

H. 1226
L. 1193
A. 1210
ES. 33

Underwood 90 gr LeHigh bullet (All copper, looks like the end of a Phillips-head screw driver)

H. 1608
L. 1583
A. 1596
ES. 25

2

Nice data. I like my P2kSK in .357sig, and might have to check out those Underwood rounds.

Almost 1600fps with an all copper bullet is going to wicked! That’s really where this round shines, or so I’ve been told in regards to pushing bullets past 1400fps mark.

3

The recoil doesn’t feel any more than the others. Less if anything. Noise might be a little higher pitched, but muzzle blast is the same. Also, no over-pressure signs at all. They shoot a little lower.