Marks 21,
As a loader of various 9.3 calibers, I always recommend against currently available jacketed 286gr bullets for 9.3x72R. These bullets are intended for the more powerful 9.3s, such as 9.3 x 57/62/64/ or 74R. The jackets are much thicker than the special "express type" bullets that are useable in the varying groove diameter barrels of 9.3x72R rifles. Additionally, they are too long for the barrel twist rate of the more modern of the rifles. I didn't make this comment at first because the original poster didn't say the bullets were jacketed and some of the older rifles did use heavier cast or swaged lead bullets.
Mike
