Not understanding all the elements of this discussion,when I called Thompson Center once about my Black Diamond XR which technically has a very similar barrel to the Omega except the difference in actions, I was told outright by a Thompson Center Tech that they were a sabot shooter. He even bragged the Black Diamond XR was one of the best sabot shooters on the market today. The rifle is an outstanding sabot shooter but I do not find the tight barrel as many experience in the Omegas.

I was alsobringing up different conicals I had wanted to try in the BDand he told me while they would shoot acceptable in most cases, the best projectile from the rifle would be "probably" a 250 grain Shockwave on two pellets of powder. Well I lucked out and the BD will also shoot conicals very well.

Why some Omega's have a tight bore, I have no idea. What makes the .504 slip fit of the White Rifle shoot conicals and sabots so well, again I am not into that engineering aspect of firearms and why they do what they do. I just love to shoot and push bullets through barrels.

When someone tells me their riflebore is tight, I usually recommend a thinner sabot or changing to a smaller diameter of bullet like a .451 instead of a .452. It can make a big difference in loading.