Everyone I've ever bought came sharp. I always touch them up a tad but, they come sharp.
Take them back and trade them for some sharp ones.
Or, get in contact with NAP and as them what's up with the dull heads. They may be sending them out dull. To save a buck (dollar)???
The same thing happened to me in the past with the Thunderheads. I took them back to the store and basically got the "oh, well" response. Finally managed to talk the owner into opening another package of the same broadheads to see if they were dull. These were razor sharp and he let me exchange them. Never heard what happened when he sent them back NAP, but I think they are slipping a little on their quality control. Whenever I buy any now, I check them at the store before leaving.
Jim Zumbo, Craig Boddington, Ron Spomer and Wayne Van Zwoll are all solid contributers to the modern hunting literature. Through their gifts (both hunting and writing) they make us better hunters. Whether it is letting us learn from their mistakes or by teaching us new techniques,they help us harvest more game. But I suggest looking to the oldies, the fathers of the outdoor writing craft, to learn tricks that you might have not used.
I chose to shoot the 270 winchester because I grew up...