Reloaded 30-06 won't chamber in Winchester model 70

[hogan]

Have you cleaned the bolt and firing pin assy? Might be some crap inside the bolt body... Might also have your bullet seated to far forward, unless you were firing handloads right from the start.

Might be some debris stuck in the neck area or throat of the barrel. never know... Pull the firing pin and try seating your loaded rounds. Might even be some junk blocking or interfering with the sear.

 

[243winxb]

I put the bolt into half-safe position so that I can close the bolt without cocking the rifle,

http://pdf.textfiles.com/manuals/FIREARMS/winchester_70.pdf

When in doubt, read the instructions on the safety and firing pin.

 

[Anakin]

Have you used a magic marker on the case to see rub marks . Of course the back is going to rub .
I think you need to have a mentor to go over reloading basics , headspace , chamber design , taper , leade , etc .
The small brass particles you point to are pretty normal when you don't push the shoulders back .

I think I figured out something, I noticed that the effort of chambering is related to the angle of the brass, I posted another thread about the ring after resizing the brass, for a lot of the brass the ring is not complete circle, maybe only half circle. So the head of the brass is actually not straight, tilting towards the no-bulging side, so every time if I chamber it with the bulging half ring downwards, the upper side the rim catches the bolt edge.

I don't think the full length sizing will correct that angle, it is created at the moment of firing, one side of the brass is expanded more than the other side.

 

[hoz53]

I checked the mouth and there is no mark. The chambering difficulty happens when I turn the bolt, most of the brass/ammo is already in the chamber. The same issue happened to most rounds when I shot in the range yesterday, then I tested on brass last night. All metal-to-metal rubbing/scraping happens at the edge of the bolt face and the brass rim

have you tried removing the extractor with an otherwise fully assembled bolt?

 

[Richard Jones]

Had something similar with a Shilen DGA, leaving marks on the rim. Found that the extractor spring was putting too much pressure on the case, so clipped the spring. No marks now.

Try removing the ejector and see if the extractor keeps the case square on the bolt face. If it's cockeyed, maybe the extractor is putting unwanted pressure. You can always try this with a substitute spring if you don't want to clip the original.

ETA: Cases weren't hard to chamber, but stripped bolt wouldn't fall on chambering a case regardless of what I did to the case. Started seeing that the case wasn't perpendicular to the bolt nose.

 

[Anakin]

Had something similar with a Shilen DGA, leaving marks on the rim. Found that the extractor spring was putting too much pressure on the case, so clipped the spring. No marks now.

Try removing the ejector and see if the extractor keeps the case square on the bolt face. If it's cockeyed, maybe the extractor is putting unwanted pressure. You can always try this with a substitute spring if you don't want to clip the original.

ETA: Cases weren't hard to chamber, but stripped bolt wouldn't fall on chambering a case regardless of what I did to the case. Started seeing that the case wasn't perpendicular to the bolt nose.

I just tried removing the ejector and with no luck, the problem still there. I agree that the case is not perpendicular to the bolt