Since you already have it, try it and see if you like it. Some hate them but they are still the most popular brake you see on hunting rifles. If you were shooting a big magnum I think the decision would be more "critical."If it’s real bad I was thinking of just going thread protector. It’s 6.5 so the recoil isn’t much of a consideration anyway.
How do you figure? If it has a brake its gonna kick up dust just throw a towel down if you practicing off a bipod, When hunting you wont notice the dust since a lot of time you're not laying in the dirt. The holes of my radial brakes actually go a couple degrees forward this helps with the traditional ear shattering bite of brakes in general. I feel the directional brakes are good but man they hurt if you not the shooter they will downright make your filling hurt if your next to them. They still kick up dust definitely not as much as radials but they still do.@punkur67 spelled it out. Radial brakes are inefficient and messy on the ground. Baffles work better by a long stretch. With the 6.5 and a baffle, you will be able to see the bullet strike.
now..the guy that pulls out the 338 Rum fluted barrel...ported... for a 100lb so cal deer...he may be using my rifle..maybe...