Here's a twist. Several years ago I sold a Weatherby MKV 257 Wby to a friend after Ibought a Weatherby Ultra Light in the same caliber. I had 60 rounds of brass and when I loaded it it wouldn't chamber in the Ultra Light. I had to buy new brass for the new rifle.
Same happened to me recently. I took delivery on a custom 300 WSM by Borden. The brass from my Sako 85 300 WSM
WILL NOT chamber in the Borden rifle. But, both sets of brass will resize in the same Redding die at the same setting & then fit their respective chambers.
