Midway has had the GP11 ammo for the k31 in the past. If you plan to handload for it Redding makes dies made specifically for the k31 chamber. I bought prvi brass from Midway. Norma makes it also but it is costly. If Midway doesn't have it check out Graf and Sons. The k31s are very accurate and easy to shoot. I am about to put a scout scope on mine which should make it even more accurate.
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