I have a batch of ammo that I have loaded up with some Berger bullets for my 270 WSM. I no longer want to shoot these loads and want to use different powder. Is it ok to extract these bullets and reuse them or do I need to use new bullets. Also, since I would be extracting these bullets would I have to resize my casings since I believe setting the bullet may stretch the tip of the casing. Not sure if it does so I thought I would ask. Thanks in advance!