Thread: bullet help please

They may be a few click bangs in that lot. About 1 in 50 of the 42 cac 303 I've chewed through did that, it lets you see if you are flinching.
Yes the primers will be corrosive us military ammunition except 30 m1 carbine used corrosive priming up till about 1954, so a barrel rinse with hot water is a good idea.
Unlike the poms the yanks didn't use fulminate priming so the brass will be good to reload.
I don't think the hollow pointing is so extreme as to jacket strip but pull a few to see, the crimp cannelure helps hold the jacket to the core and the jacket base will be rolled over the lead cored slightly which also helps.
Pulling a few will also let you check the powder and case interior.