How does a 20 gauge slug compare ballistically to a 270 Win?

Answer 1

Trajectory wise the .270 is much better, flatter shooting, that is. As far as muzzel velocity and energy, not really sure, but would lean towards the .270 having more velocity and the 20 gauge having more energy, but I feel velocity is more important. The .270 will definetely hold on to it's velocity and energy much better than the slug because most rifle bullets are made for long distance shooting, certainly much further than a slug which I would say is good out to only about 100 - 150 yds... Looked into it some more, velocity much higher with a .270 out the barrel, with somethin around 3000 fps, 20 gauge slug only 1900 fps. This is a 260 grain slug and around a 130 gr .270 bullet (good factory loads run around 3000 fps for 130 gr but you can hand load a 130 gr to 3200+ fps, but hornady makes a great light mag 130 gr interbond cartridge that pushes 3200 fps, I love hornady!). This gives the slug ~ 2080 ft-lbs of energy and the .270 (hornady ammo) ~ 3000 ft-lbs. And of course the .270 is much more accurate, snipers don't like them as much as their military rounds, but they can't denie that the .270 is flatter shooting than either the .308 or the .223, both of which are also great cartridges, but the .270 is real accurate and if you can't consitantly hit your target in a good rifle chambered in it you need to practice more... .270 much superior in my opinion, 20 gauge will do fine for closer ranges, but so will the .270 and it's better longer