top five for me

1. You can learn everything you ever needed to know about guns, handloading, ballistics, safety and hunting from the internet without ever having to actually do any of these things.

2. There is some mythically huge difference in the strength and or accuracy of the common, comparative factory bolt center fire rifle right out of the box.

3. In the gun world the word "better" is freely used and rarely understood. ie...".280 is better than .270" ".223 is better than .204" "30-06 is better than .308" At no point "better" is defined just suggested. Who knows what the hell is meant by 'better'.

4. Using the same chambering that some hack writer uses in a magazine to hunt with never ensures the same most excellent results as he gets.

5. Good shooters make good hunters.

I can only think of several hundred more but you only asked for five.