i have 10 rounds of winchester surpreme brass that i loaded. it is trimmed to the same case length, same bullet depth and same oal(2.70) for my 243. the regular brass chambers just fine but the crome stuff wont let the bolt close completely. i tried to put it in my NEF rifle and it looked like it was fully chambered but when i closed it the ejector button wouldnt lock. would this chrome plated brass need to be handled differently for some reason or maybe it cant be reloaded as i was once told. this brass was also fl sized with the brass stuff.