shootersupplyusa lists some PRVI 303 brass for about $55 for 100. Never purchased from them before. Got some PRVI and Jamison some years ago when it was cheaper. Before that I got 30-40 Krag resized to 303 from buffaloarms. The resized Krag had issues after several times of resizing. I would only use as a last resort.
Buffalo arms also has PRVI and Jamison 303, they are a little more expensive but I have purchased from them before and they are a good company to deal with.
