I have not been able to afford a Wilson Case gauge to check these cases.
One reason I came to that conclusion is that I resized the brass more than once (in succession, like I said, I was learning!!) and I believe I had the die set wrong at one point or another. Second reason is I have tried the same brass in two different rifles (CZ with upgraded firing pin spring and H&R) and had the same problem. Third reason, one of the rifles I have is a Handi-Rifle, and I inserted the cartridge in the chamber and let it slip past the extractor, (oh, by the way, I have found that the case heads are all either out of round or different sizes which makes this very easy to do) and the case head is recessed compared to the chamber face.
All that being said, I am still open to suggestions or thoughts. Could it be that I crimped the bullets too tight on these? If I remember correctly, I would chamber empty brass with a primer seated and I could fire the primer but then I would load that same brass and it would fail to fire.
Seems like I tried both CCI and Winchester primers, but I cannot swear to it. Another thing I tried was trimming all of the cases to the same length. The case mouths were very "jagged", one side would be higher than the other or generally had a rough edge. I thought this might be messing up something in the process.
The funny thing is they fired fine as factory loaded ammo, not one failure. . .I figure it had to be something I did.
BW