I wanted to develop a load for the 308 Winchester that will perform out to 1 mile. Load goal was to use a 200gr projectile and push it around 2800 FPS. Here's the results
Load: 47.3gr Alliant Reloader 17 (compressed)
Case: Starline Small Rifle Primed match fireformed 54.4gr Volume
Primer: CCI450
Bullet: Berger 200x20
COAL: 3.017" - 5 thousandths off lands
Rifle:
Custom Mossberg 100ATR
Douglass 29.5 inch Premium XX heavy Palma 1-10 twist
Dave Manson M852 308. Winchester Match reamer
Freebore: .075"
Neck Diameter: .343"
Neck Length: .312"
90* Muzzle Crown 5/8x24 thread
Muzzle Break: Harrolds Precision Tactical, blended with barrel
Factory stock pillar and glass bedded and custom cheek riser
Scope: SWFA SS 16x
Scope mount: F3R Machine Cantilever
Scope Base: EGW 20 MOA
Cadwell Pivot bipod
Summary:
Consistent sub half MOA @100 yards. Excellent performance in 15 mph wind. Performed out to 1800 yards scope dope 83MOA, 4.75 Left zero wind 83*F 28.86inhG
Powder is temperature sensitive. Deviation of 60 FPS between 100*F and 60*F. Build a dope chart accordingly
Awesome Info , Thanks for sharing !