I’m not normally one to go through 2 brand new cases of Winchester 147gr 30-06 fmj ammo (2016 mfg), but I did recently open up a case and look in one box, where I noticed a single cartridge with a Winchester 270 headstamp. The finished cartridge was, in fact a 30-06 with correct O.A.L. & .30 caliber bullet, so it just had the wrong headstamp. I began looking through every box, and quite strangely, I found 10 cartridges across 20 new boxes. So basically 5rds per 200rd case was the average, and I never found more than one error rd per box.
The error rd was also always in the middle of the box. This led me to wonder if this was a known factory error which somebody at the factory tried to spread out & conceal in the boxes? The average shooter probably wouldn’t notice, and it seems perfectly fine 30-06 ammo anyway, and did weigh out exactly the same as the other 30-06 in the lot. The lot number was the same on all boxes - 18LB32. The 2 cases both came from MidwayUSA from a one-day sale they had last week where a case of 200rds was $129.99, which was the best price online for new brass cased ammo at the time. I also wonder if Midway knew, and if this lot was sort of a discounted lot from Winchester which allowed for Midway’s relatively very low price for this sku? Is this sort of error something that happens much, or is this really bizarre? I would think for Winchester it is at least out of character.