It's nought to do with spuds! It's a numbers game, I was recently told by a FAL that I couldn't have a 6.5x55 as my permissions were only cleared for .308,but I could have a 260 or 270
. 6.5 is bigger than .308 therefore much scarier!
Politely point out you're not after a 6.5 inch cannon.
,but I could have a 260 or 270