Brass on bolt face

[SGK]

I went to clean my 6mm Creedmoor rifle today and noticed brass shavings on the bolt face. I've never felt excessive bolt lift and on its last outing I was just fire-forming brass with a moderate load. I have already tumbled the brass so can't take a pic. However I will track down a pic taken of the brass from the previous outing. Ideas?

Pics of brass. Slight scuff (barely visible) but not where one would expect a scuff due to excess pressure...? I had tested for pressure up to 41.2 gr of RL16 and had then used 40.2 for fire-forming.

Link: #16

 

[SGK]

I'm not even sure I can get the brass flecks off the bolt face. They're impregnated rather than loose.

Action is Defiance Deviant Elite

 

[Dusty Stevens]

Dont worry about that. Its just the rough finish combined with the ejector cut thats there. Not an issue and will stop once it smooths out

 

[SGK]

Cool. I will carry on. Love this rifle. Thx

 

[LA50SHOOTER]

I'm not even sure I can get the brass flecks off the bolt face. They're impregnated rather than loose.

Put some copper solvent type bore cleaner on a que-tip and wipe it, then brush it with the bristles of armors type cleaning brush. - wipe it with a couple clean que-tips, brass shards should come off.

- Ron -

 

[Zero333]

This is normal.

Use a bronze toothbrush to get some of it off. eventually the bolt face will smooth out enough not to do it as bad.

As you rotate the bolt, the brass gets etched onto it.

 

[Iowa Fox]

Put some copper solvent type bore cleaner on a que-tip and wipe it, then brush it with the bristles of armors type cleaning brush. - wipe it with a couple clean que-tips, brass shards should come off.

- Ron -

Yep. Q-tip with some kroil or bore cleaner. Should lift right off after soaking, some new bolts are a little rougher than others and do that.