18" 8 twist Bear Creek Arsenal (Mid length gas) 223 Wylde
Winchester 223 brass (new)
CCI 450
70 Grain RDF
There doesn't seem to be a lot of info out there, so here is what I have done so far with my own load development . All loads are CBTO 1.795" (or about 2.248" OAL), which is .010" off the lands in my rifle.
CFE223
26.0 avg 2780 ft/s
26.5 avg 2833 ft/s
27.0 avg 2894 ft/s
All of these shot in the 1.5-2moa range. No sign of pressure but no reason to press on either.
IMR 8208 XBR
23.0
23.5 avg 2780 ft/s
24.0
Then I started only chronographing the loads that were shooting sub moa. The group for 23.5 grains of 8208 measured .375". Definite pressure signs at 24.0.
Benchmark
22.5 avg 2740 ft/s
23.0 avg 2775 ft/s
23.5
The 23.0 was the best group at about .4"
The benchmark was showing some pressure at 23.5
**As always, work loads up carefully. These were safe in my rifle, but your results may vary**
Winchester 223 brass (new)
CCI 450
70 Grain RDF
There doesn't seem to be a lot of info out there, so here is what I have done so far with my own load development . All loads are CBTO 1.795" (or about 2.248" OAL), which is .010" off the lands in my rifle.
CFE223
26.0 avg 2780 ft/s
26.5 avg 2833 ft/s
27.0 avg 2894 ft/s
All of these shot in the 1.5-2moa range. No sign of pressure but no reason to press on either.
IMR 8208 XBR
23.0
23.5 avg 2780 ft/s
24.0
Then I started only chronographing the loads that were shooting sub moa. The group for 23.5 grains of 8208 measured .375". Definite pressure signs at 24.0.
Benchmark
22.5 avg 2740 ft/s
23.0 avg 2775 ft/s
23.5
The 23.0 was the best group at about .4"
The benchmark was showing some pressure at 23.5
**As always, work loads up carefully. These were safe in my rifle, but your results may vary**
