.45-70 Brass Bright Line

[Tennessee_Ted]

I haven’t been reloading for the last few years, and I’m working on a batch of .45-70 for deer season. I’m going slow and being very cautious, since I haven’t done it in so long.

The brass I’m working with has been shot twice (3-4 years ago) at lever action pressure levels, and it’s trimmed a little short for the Hornady FTX bullets. It’s Winchester brass.

After resizing and depriming, I noticed that each casing has a bright line near the case head as pictured. It’s right where the case starts to taper.

I probed the inside of the case wall with a length of wire and couldn’t feel any sort of apparent variation in the case thickness there.

Do y’all think I’m looking at a case head separation waiting to happen, or is it just an artifact of the resizing die?

Thanks in advance.

 

[Blue68f100]

It's where you sizing die stopped. Very common. The sizing die may have a sharp edge at the mouth causing the line.

 

[Tennessee_Ted]

It's where you sizing die stopped. Very common. The sizing die may have a sharp edge at the mouth causing the line.

Thanks!

That’s sort of what I was thinking, but I wanted to make sure I was on the right track.

 

[FROGO207]

Lots easier to ask before a problem than after something is ruined. The folks on this subforum are a wealth of knowledge.