Thread: .270 muzzle speed

You don't need to trust me though - https://bergerbullets.com/nobsbc/measuring-bcs/


"Shooters are often tempted to “measure” BC by shooting at long range and using the observed bullet drop to determine BC. This is the least accurate method and is not advised. The reason this is the least accurate method is because you’re bringing in all the variables of the rifle sighting system, your zero, ability to measure drop, wind, accuracy of scope corrections, etc. You would have to go to extraordinary means to address all the variables involved in measuring BC with drop. Even though many shooters talk about BC’s in relation to their perceived bullet drop, this is not a serious way of doing it since velocity and time of flight measurements are more direct and accurate."