Rex video, but here's his list. You may have a different list.
[QUOTE]
10. Assuming that Muzzle Velocity Is Constant (it is NOT)
9. Thinking a Rifle is Zeroed Properly (they rarely are)
8. Enforcing Marksmanship Dogmas for the Wrong Applications
7. Thinking one needs to "true" MV before every match
6. Assuming Meteorological Equipment is Impervious to Misuse
5. Believing that Ballistic Models Are Reality
4. Thinking DOPE for a certain load is transferable to other rifles
3. Trusting Your LASER without secondary range confirmations
2. Pretending that 'Magical Equipment' will Make One Shoot Better
1. Thinking that 'Walking Fire' Onto a Target is Precision Shooting
https://www.youtube.com/watch?v=4QttbSLNPfE
