02-14-2014, 07:21 PM
Those lands appear to be in the area of 30:70 (land to groove) lands apx .050" wide. Compare that to the freebore(ring). I would shoot it and see how it does. The bullets shouldn't jam the lands so it shouldn't cause excessive pressure.
As for the compound throat, I think it would be pretty tough to tell the difference between a .5 and 1.5 degree slope with the naked eye.
As for the compound throat, I think it would be pretty tough to tell the difference between a .5 and 1.5 degree slope with the naked eye.