6mm ARC

[Fess]

The heaviest longest 6 mm bullet I checked on the Berger stability factor web site was a 115 grain hunting bullet at 0 degrees and sea level.
https://bergerbullets.com/twist-rate-calculator/

I thought of making a snarky remark like "Well don't keep yer bullets in the freezer dag-nab it! Keep them in your pocket so they'll stay warm!"
That seemed awfuliy silly, so I think I'll keep that comment to myself.