Barrel is not free floating, it is tied to the gas system/forend group. Triple K 10 round mag functions well in my 7400 carbine, but it doesn't hold the bolt open when empty. Accuracy: For offhand and field rest (fencepost/tree) the rifle is more accuate than I am. From a bench or bipod my bolt action 30-06 gives much tighter groups. This may vary from rifle to rifle but my 7400 functions well (doesn't jam) only if its clean, it seems paticularly finicky about chamber cleanliness. For reloads my rifle likes IMR 4064 and IMR 4895 with 150 - 165 grain bullets, slower powders (ie IMR 4350) give extraction problems, probably due to too high gas port pressures.