Well, Here's mine.............Last Saturday I went to a CBA match In Spokane with my Savage Model 16 chambered for .250 Sav. I've shot this rifle many times in the past, and have done well, with my load of 14.3g of Reloder 7 and a Saeco 25-100 cast from 10:1 alloy,air cooled and sized to .2594. The OAL is 2.450" I went to the match with 2 boxes of 50 rounds each of this same load. Imagine my surprise when none of the rounds in the one box would chamber in the rifle! Luckily, the rounds from the second box did.
I began the match knowing that I had to fire the 40 rounds for record with only 10 rounds for sighters and "foulers". I made it thru the score match, but ran out of ammo during the 10 round group match. Boy was I embarrassed! I am so meticulous when it comes to loading for the CBA matches, that some would consider me anal. I weigh every charge and weigh and sort boolits etc.
When I got home, I discovered that even tho both boxes were loaded to an OAL of 2.450", the one box where the ammo didn't fit, had a neck dimension of .291" instead of the usual .287". I noticed that each box was loaded on a different date, and I have determined that on the latest dated box, I didn't have the seating die far enuf down to adequately remove the slight bell from the "M" die.
Now, what's your story?