My gunsmith rented the .30 Gibbs reamer from 4D without any issues.4D rentals has one with a 0.340 neck and .090 freebore. This one would barely work for no neck turn if you have Peterson 284 brass. Most of my loaded neck ODs are 0.370-0.375. but, I don't know if 0.090 freebore would be enough for the heavy bullet application. And I don't know what kind of shape that reamer is in. I'm leary about rental reamers now that I got burned by a 40 year old reamer.