Originally Posted by
Mystro
This is interesting regarding today's Ballistic Coefficient. The 270 has more in common performance wise with the 300 Win Mag. Look at the bullet speed,energy and trajectory at 500 yards. This is from Hornadys 2013 ammunition catalog.
Not True. I'm calling BS on your cherry picking of loads. You're comparing a 270win "Hornady Super Performance" load to standard loads for the '06 and WM.
How about we compare apples to apples, shall we? Same product line, SST Super Performance...
Trajectory and velocity yes. Energy no. Energy for a 180grn 300WM Hornady SST Super Performance at 500yrds =
30% greater than that of the 140grn .270Win Hornady SST Super Performance. Yes, the trajectory is within 1", and velocity close enough to "the same", but you can't have all of those numbers line up with different bullet weights.
Same velocity with different bullet weights will ALWAYS have different energy.
Trajectory doesn't matter nearly as much to me as what the bullet can handle at the receiving end. Comparing a 140grn bullet to a 180grn bullet is a losing battle. I have .223rem loads that match the trajectory of some of my .30-06 loads, but I don't go casting a 55grn pill 500yrds after a 300lb whitetail.