No ....it's brand new brass...they are/were run through a FLR die before loading up...the load is 40.5gns of 2208 under a 87 gns HP projectile...WLR primer. Nothing to flash there...certainly no pressure issues
I find that load works fine in Federal and Hornady brass, absolutely flawless, but the Winchester brass is a totally different story.
The rifle is a rebarrelled Browning BLR in 257 Roberts so it's not pushed to hard so as to avoid extraction ejection problems. The strange thing is about 80 percent of this batch of brass suffer some sort of primer pocket issue
Maybe just unlucky, I don't know, but certainly would be hesitant to recommend or use Winchester brass at the moment.
Something I have heard, and I think it may have been here on the forum, that when Winchester changed their packaging of new brass from the old blue and white packaging to the new red and white packaging, reloading issues were experienced by users.
Collector 1