I recently aquired a Savage Model 12 in 6.5-284 and someone has given me some brass along with the rifle. Most of this brass is 6.5-284, some is 284 resized to 6.5, then I noticed some 22-284. The 22-284 was originally .284 resized down to 22-284.....My question is, would it ok to size it back up to use in the 6.5-284?

I mostly reload 300BO, .223, 6.5CM, 308 rifle calibers, and have for years, but I have not messed with this round at all and would appreciate some advice. Thanks in advance!!