Cor-Bon 260 Rem 123gr – Test Results

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Manufacturer: Cor-Bon

Date Fired: 22 Sep 2007
Time Test Began: 0954
Range: Deer Creek Shooting Complex
Wind: 2-5 MPH
Temperature: 55° F
Elevation: 3200′ ASL
Lot Number: 20070101

Factory Velocity: 3000 fps
Product Number: PM260REM123
Purchase Price: $22.60 USD
Bullet Used: Lapua 123gr BTHP Scenar
Ballistic Coefficient: .547

Sniper Central Custom Remington 700 Tactical Rifle (SC2) Test Results
Average Velocity Standard Deviation Extreme Spread Accuracy w/flyers Accuracy no flyers Best Group
2773 fps 15.72 55 .507″ .507″ .230″
  • Very nice accurate load using the 123gr
  • Uses Remington brass
  • I do not like the cor-bon ammo boxes
  • Velocities did not come close to the published 3000 fps, not sure what length barrel they tested with

 

KMW Long Range Solutions Custom .260 Tactical Rifle
Average Velocity Standard Deviation Extreme Spread Accuracy w/flyers Accuracy no flyers Best Group
2907 fps 21.99 66 .434″ .434″ .362″
  • 4″ longer barrel gains 134 fps over the SC2!
  • Excellent velocity combined with excellent accuracy makes an excellent long range load
  • While still not close to the claimed 3000 fps, it is still excellent velocity.
  • At 2900 fps the long range ballistics will match the 300 Win Mag 190gr Match

NOTE: “Accuracy with flyers” includes the raw averages including groups where the shooter called a bad shot before rechecking the placement of that shot. The “average without flyers” is the average group size with those “flyer” groups not added in.