Since I'm sure I'm the only person who has ever done this: Make sure the new bullets you want to try work in your rifle BEFORE you buy them. I wanted to try some heavier bullets in my AR and went looking for some 68 gr. Hornady's but the only thing in stock were 75 gr. I bought some to try anyway and they won't fit in the magazine! Live and learn I suppose, the aggravating part is they are only .003-4" too long.