So went out shooting for the first time yesterday had a ball with a couple 9mm, little 22, moss500, and the Winchester. Anyway, went through the first box of 30-30 and moved on to the second and, without paying attention, started loading. Turns out the seconds box was 243, and like a dill hole when I let the clerk who sold them to me, I just went ahead and shot the ****. The first fired, the second jammed and I can't get it out. Any suggestions or similar experiences...?