That's an interesting comparison for the somewhat velocity deprived 16 inch tube, which I've been thinking about a 308 so set up. Being that the accubond are designed to expand down to 1800 ft/s and the accubond LR down to 1300 as they tell us looks like the ABs are good for 400 almost 5 and the ABLR good to expand out to somewhere off the chart. I wouldn't have thunk the slow #ssed 210 would be the way to go stretch its limits with a short tube..