I'm offended by the thread title. Come on mods! 

If the shoe fits and all. LOL!!!I'm offended by the thread title. Come on mods!![]()
You ain’t from Georgia you Hillbilly!I'm offended by the thread title. Come on mods!![]()
I was also unfamiliar with the term "crackers" with regard to .22LR ammo. I usually associate it with cheese.
Perhaps. But "cracker" doesn't seem anything especially untoward across the pond. It can refer to entertaining talk (cracking jokes), loud, bragging talk, or dry, crisp biscuits. It's more pejorative meanings are usually used on this side of the AtlanticYou all realize that the op is from the United Kingdom and their terms are slightly different than ours. Him and his friends are probably sitting at the pub laughing.
My shooting buddy and I noted this last week while tuning with some Eley Tenex. We were using a Garmin Zero.Speed of sound changes with temps. Ammo velocity changes with temps, too.
When it's colder the same ammo will on average be slower. It will speed up as temps increase.
Does your MTR prefer a particular brand of ammo..?Happens with cz mtr chambers and Match chambers in general. It's referred to as engraving the bullet. Unless you can't extract an unfired round it's nothing to worry about. Carry a cleaning rod to knock the stuck unfired rounds out of the chamber when it's required.