I brought some so called old stock 6.5x55 rounds from a local gun shop. They were all sized differently and the bolt action wouldn't close correctly. Turned out they were reloads and should not have been sold to me!
It put me off reloads but I think with a good tutor I would enjoy reloading. It seems with factory rounds, that you get used to one type of bullet/grains/make and then the shop stops selling them! I have 100 grain RWS for my 243. They are great, I'd like to home load to their spec or similar.