what's causing this...??

[8x68s]

Getting ready for a hunt and pulled out my box of loads. I found one round was noticeably longer than the rest in the box. Went back to my notes and got the gauge out to check them all. Just two others were longer than loaded length. The one that was so noticeable was over an 1/8" too long. These loads are 1 year old and were properly sized and not compressed when they went into the box. What happened with those 3 rounds? Thanks for the input!

 

[Farmerboy78]

Cartridge and charge?

 

[Pdvdh]

Pull those two bullets and examine the contents. Re-weigh those two powder charges.
That's the least I'd do, FWIW

 

[243winxb]

Neck tension?

 

[8x68s]

cartridge is 8mmRem mag, 200gr bullet ahead of 78.5 gr of RL22...

 

[Farmerboy78]

Is that a compressed load?

 

[P7M13]

1/8" is excessive. Did you check B2O?