I'm unsure if this is the right forum for this but I'm trying to figure out a ballistics question or more like comparison. I currently use a .280 remington to hunt Whitetail in West Texas. I've been researching cartridges for longer ranges for target shooting, practice etc. I'm looking at Magnum cartridges right now because you can just never have enough firepower. When I compared ballistics between the .280, various cartridges in 140 gr and .300 Win Mag in 180 gr, I'm seeing better ballistics in factory loads for the .280. Is this legit, or can I get better results from the .300 Win Mag with handloads. Is the .280 just a superior cartridge. I picked the .280 after long thoughtful research comparing lots of available S/A and L/A cartridges and even though it kicks like hell, I love shooting it. However I don't see many custom manufacturers making rifles chambered in .280, is there a reason for this or is it just not a widely used cartridge. Sorry if I seem to be rambling but it was a long day and Im just doing some research before bed.