I finally got the the range today. My "go-to" primer is WLR. For some reason about half of my reloads didn't fire on the first try. I had some other cases that were loaded with different primers that I took along as sighters. They all fired lawlessly.
When I got home I first tried resetting the sizing die thinking that it might be set too far back and headspace allows the case to slide forward.
Not the issue. When I switched out for CCI #34 primers, they all fired. Winchesters still not 100%
I might have a bad batch of primers. I bought them from GB and them were reportedly stored correctly...
I hope to try the WLR in my Rem 673.
I also sprayed GunScrubber down into the firing pin channel just to make sure. No difference.
So do you think it might be the primers or an issue with the gun? Traditionally the WLR has been easy to ignite in other guns. Is the BLR known for light hammer spring?

Last edited by WStrayer; 01/27/23.