Age and nutrition are the biggest factors in determining antler growth, Shaw said.
Age can be determined by hunters. If Oklahoma hunters want trophy bucks, they need to be willing to pass on young bucks and let them grow into potentially Boone & Crockett class animals.
As far as nutrition, calcium and phosphorus are the most important minerals for antler growth. Shaw said.
Providing supplements to a deer herd can help if the animals are not getting those minerals in their forage, but Shaw cautions that "there's not a sack out there you can throw on the ground and grow you a big deer."
Oklahoma also seems to produce more non-typical trophy bucks than other states, at least by Boone & Crockett standards.
Non-typical whitetail entries represent 37 percent of the total whitetails listed in Boone & Crockett records.
But in Oklahoma, the non-typical ratio is much higher, as 89 of the 163 Oklahoma whitetail entries in Boone & Crockett are non-typical bucks, or 55 percent.
Shaw doesn't have an explanation for it, other than it is a little easier to get a non-typical in the Boone & Crockett record book.
Genetics or an injury can produce a non-typical rack, antlers with abnormal points.
Some hunters prefer a trophy buck with a perfect symmetrical rack. Others want antlers with unique characteristics, such as drop tines.
"That's what keeps Braum's in business," Shaw said. "Different flavors."