ORIGINAL: HighDesertWolf
no I dont because you are comparing a 223 match bullet to .277" dia hunting bullets which will have far lower BC's then match bullets...... gotta compare apples with apples here buddy....
I got my figures using long range ballistic tables in the back of my RCBS reloading manual. I used the BC's of a 62 grain .224 dia bthp match bullet and a 115 grain .277 dia. bthp match bullet. when using the given chart for specific yardage for that specific BC and velocity range. then using the kinetic energy conversion equasion also in the book and converting all the data for kinetic energy from the velocity I determined that the 6.8 spc with the same style of bullet as a .223 would have atleast twice the KE out to 500 yards I then confirmed my findings on my buddies sierra ballistic software and also determined my finding were also true for ranges from 500 to 1000 yards.
Well something you did doesn't work out right because nothing like that is reflected by the ammo manufacturers.
I'm not calling you a liar or anythingbutthe 6.8 doesn't even have the potentialto yield that much energy let alone actually yield it now.
The hottest load data I could find would still only yield just over 1700 ft/lbsat the muzzle. That isonly about 400 ft/lbs more than the .223. Not even close to double.
The 115 gr. bullet in the 6.8 would have to begoing over 3100 fps in order to produce twice the energy of a .223 at the muzzle. The fastest I could find was just over 2600 fps.