Quoted:

Welcome, normally only see your posts in the HTF.



LC brass, Wolf SRM, 55 gr FMJBT seated to mid cannelure and crimped with Lee FCD, 26.0 grs Tac.



No pressure signs in my rifle, most folks around here run in the 25.0 to 25.5 gr range.



YMMV

Quoted:
I emailed Ramshot about Tac load data for 5.56 and this is what I got.

ETA- I just got an 8# jug, so I'm interested to hear what people are using.


I assume you want the higher pressure MIL loads.
If not you can reduce these by 1.0 full grain for the lower SAAMI level.
Caliber:      5.56mmx45NATO. (.223 Remington)
Pressure spec:     MIL <58700 Psi “Case mouth” = <62000 Psi chamber
Barrel length:      20” (For 16” barrel reduce velocities by 5 to 6% ca 150 Fps)
Powder:           Ramshot – TAC.
Bullet weight:   55 grain FMJ (M-193).
Start load: 25.0 grains (2925 – 3025 Ft/p/sec)
Maximum load:  27.8 grains (3300 – 3400 Ft/p/sec). <62000 Psi
Bullet weight:   62 grain FMJ (M-855).
Start load: 24.0 grains (2850 – 2950 Ft/p/sec)
Maximum load:  26.7 grains (3100 – 3200 Ft/p/sec). <62000 Psi
Bullet weight:  68-69 grain HP.
Start load: 23.5 grains (2750 – 2850 Ft/p/sec)
Maximum load:  26.2 grains (3075 – 3175 Ft/p/sec). <62000 Psi
Bullet weight:   77 grain HP.
Start load: 22.1 grains (2525 – 2625 Ft/p/sec)
Maximum load:  24.5 grains (2750 – 2850 Ft/p/sec). <62000 Psi

NOTES:
It’ important to note that SAFETY is our prime concern therefore we strongly recommend.
1.        TO ALWAYS BEGIN LOADING AT THE RECOMMENDED MINIMUM “START” LOAD.
2.        If at all possible, measure the velocity and correlate with our data.


Regards
Johan Loubser
Ballistician
Ramshot/Accurate Powders
Tel: (406) 234 04 22  email: [email protected]
Western Powders Inc –– Miles City – Montana.