Since joining AH I've been getting lots of really good information from you all. I've had some remarkable replies to my posts, no effort spared to explain things to me and for that I'm most grateful. Reading other posts on the forum as well as my own, I've stumbled across something else I really feel the need to ask! I've been doing a lot of asking and have made a plonker of myself once or twice, but hey, I'm here to learn! So here goes... How come a rifle is generally loaded with an expanding first round, followed up with solids? I've read through the ammunition performance post - it's good to see the results you're all having even if some reviews are mixed. I couldn't see an answer to this. It doesn't make much sense to me when a good expanding bullet will crack through a shoulder, churn up the heart/lungs and come to rest in the far side of the animal, maybe even exit? I suppose the solid is more likely to enter through a hip and make it to the vitals of a tough animal but by that point, how much damage will it do if it's not moving quickly and hasn't expanded? Another thing I'm wondering is when shooting through heavy bone with modern bullets, is it essential to shoot the heaviest bullets available? That seems to be the case with most factory rounds. 300gr in .375, 400 in the .40's and 500 in the .45's. Is there a minimum BC that suggests a bullet is suitable? Assuming the correct construction of course.