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last one is of a processors face as he walked around the corner to help his helper finish my deer I shot with a 300 Blackout .. look closely just behind the front shoulder is the ENTRY hole .. exit on other side was golf ball size... That deer weighed over 180 lbs live.. he was the one that told me a Blackout would not kill a deer..
This is the ONLY deer that I have had much blood shot Surface meat on and again that's the ENTRY hole ..
these are some pics I found quickly there are many more ..
Bill I would not worry at all about expansion .. IF you are using something like 50/50 and 2% tin you will not have any expansion issues