Thought I’d share some results I got from testing some 6.5CM loads.
Cartridge: [39.5grains h4350 powder, same sig brass, federal large rifle primers
Hornady 143grain eld-x bullets
Overall cartridge length: 2.8100”
Length when measured with comparator tool 2.1710”
Rifle: browning x-bolt speed 22” barrel
Barrel twist 8”
No modifications
Stock trigger
Shooting position: prone
Target range: 100yards
Conditions:
70°F sunny, appx.15mph wind blowing to 5-o’clock.
Elevation:5300feet
Measurements:
Cartridge: [39.5grains h4350 powder, same sig brass, federal large rifle primers
Hornady 143grain eld-x bullets
Overall cartridge length: 2.8100”
Length when measured with comparator tool 2.1710”
Rifle: browning x-bolt speed 22” barrel
Barrel twist 8”
No modifications
Stock trigger
Shooting position: prone
Target range: 100yards
Conditions:
70°F sunny, appx.15mph wind blowing to 5-o’clock.
Elevation:5300feet
Measurements:
- Shot 1: [2600 fps]-not cold bore shot.
- Shot 2: [2612 fps]
- Shot 3: [2606fps]
- Shot 4:[ 2612fps
- Average FPS: [2606fps
- Standard Deviation (SD): [4.8