Marks on bullet. What is going on here?!?!

Take a look at the video below. When I use my Hornady OAL gauge to push the bullet up to the lands I hit a good deal of resistance, if I push a little harder the bullet then slides up and stops (at what I assume is the lands). When I pull the bullet out it has these marks all the way around. This happens every time I try it. I have confirmed those marks are not from the case nor at any point during ejecting. Took it to the local gunsmith and he said "I don't know, weird." Thanks...He used a bore scope and didn't note "anything out of the ordinary" but it seems like something is.

Anyone have any ideas. This is a Christensen ELR., chambered in 6.5 CM. The bullet is a 140gr Berger VLD Hunting.

Maybe the chamber reamer was worn and the diameter of the throat is a few tenths small.

Scimitar762 said:

Maybe the chamber reamer was worn and the diameter of the throat is a few tenths small.

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Only thing I can think of is the throat being too tight. Guess I'll need to send it back...

My brother had an issue with his Christensen and they took care of it

Perhaps a carbon ring causing the marks?

Looks like you're jamming into the lands. Are you using a fired case or sized case?

jd5521 said:

Looks like you're jamming into the lands. Are you using a fired case or sized case?

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To the middle of ogive? I would think that would require a very large hammer, both in and out.

Steve gavette said:

To the middle of ogive? I would think that would require a very large hammer, both in and out.

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That's why I also asked what form the case was in. The case mouth might be scraping the bullet if it's being pushed all the way up it. We need more info.

the case is a Hornady modified case. I measured from the shoulder on it and a chamber fired case and they're real close (don't remember the difference but it was not a factor). I thought about the case mouth too but it's smooth. This is something with the throat because the bullet gets "stuck" in the barrel and I have to push it back out with a cleaning rod.

Yeah..have to think it's the case mouth..as you shove it it is sticky leaving the scratches..cause where your coal should be your digging in again..bullet sticking in barrel because you are into lands...test it..new bullet seated longer and move back as needed...

26Reload said:

Yeah..have to think it's the case mouth..as you shove it it is sticky leaving the scratches..cause where your coal should be your digging in again..bullet sticking in barrel because you are into lands...test it..new bullet seated longer and move back as needed...

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I'd suggest having your Gunsmith make you a modified case from the brass you are using/firing in that rifle.......if he has the necessary drill bit/tap, of course.

The bullet slides freely in and out of the case with no resistance. I don't see how it is what is scratching the bullet.

alarcher said:

The bullet slides freely in and out of the case with no resistance. I don't see how it is what is scratching the bullet.

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My bad, I watched the video again, I do believe you have a chamber issue, looks like the reamer gave up or was not ground correctly to start with, I've seen this a bunch in the last decade