Labradar 5.56 data 1168

[1168]

65*
G19/PMM Barrel/Comp
Blue 125 TC, Ginex primers, HS-6
1.167” COL mixed brass

6.0
Av 1107
Es 133
Sd 39.8

6.1
Av 1125
Es 61
Sd 19.4

6.2
Av 1135
Es 88
Sd 30

6.3
Av 1160
Es 62
Sd 18.9

6.4
Av 1186
Es 54
Sd 21

6.5
Av 1212
Es 66
Sd 22.1

6.6
Av 1219
Es 33
Sd 9.6

6.7
Av 1230
Es 88
Sd 22.2

This shit is loud as ****. All of it cycled, vigorously. I’d say most or all of it had a feel mimicking +p. Mind the COL if you’re thinking about reproducing this. I had a hard time capturing shots reliably because it really made me want to bang away faster than the chrono could keep up.

[opngrnd]

Those loads ended solidly in +P territory, if I'm reading it correctly. I've used plenty of HS-6 for mild to standard velocities in 9mm and mild to full power loads in 38 Super. I always had good luck with it, though I was using it with jacketed bullets.

[1168]

Those loads ended solidly in +P territory, if I'm reading it correctly. I've used plenty of HS-6 for mild to standard velocities in 9mm and mild to full power loads in 38 Super. I always had good luck with it, though I was using it with jacketed bullets.

Thats a really good point. I’m using .355 powdercoated bullets. I got the charge weights from Speer, but my velocities are much higher than they got with plated and jacketed bullets. I seated them long because all of the published data seemed conservative, and I thought I might seek to venture a bit above published charge weights later, to mimic +p loads. But I got what I wanted without doing that.

A friend of mine that was recording normally loads with TG, but occasionally 244 or CFE-P, and he was like “Did you just say 6.0-6.7?…. Are you sure?”

Edit: for anyone wondering, this project is to economically drive the comp while mimicking +p recoil. Shoot me a PM to avoid cluttering the thread if you’d like more discussion on this topic.