If you are sure that is a tom, they are too young to use the breast feather method for sexing them as the turkey in that photo clearly has light edges on its breast feathers which would indicate it is a hen.
Bourbon Red tom - no light edges on the breast feathers.
Bourbon Red hen - light...
Bourbon Reds are considered dark colored. Light colored ones are whites and palms, etc. By the time that the breast feathering works, there are already other signs such as toms being bigger, having heavier legs, having a larger snood or a snood that swells much larger than a hen's snood, the...
It appears that they may be old enough to use the breast feather technique. On dark feathered birds, the breast feathers of hens have a light bottom edge. In your second pic, the hen appears to have light strips on the bottom edge of her breast feathers. Males will not have that light edging...