6mm ARC extracting issues

[Kcbullets]

Trying to help my son trouble a problem with 6mm arc reloads. I don’t know much about this caliber or gun. But when loading and unloading factory ammo it’s flawless. When loading and unloading some reloads, at times it doesn’t feed 100%, at other times it is difficult to extract them from the chamber. Occasionally it will even pull the bullet from the casing. This only happens on reloads. Casing lengths, oal, bullet diameter, all seem to be equal too or shorter than factory. Using a Hornady shell holder with a rcbs press. Cam over is hard. Ideas of what to look for? Why would it extract the bullet from casing?

 

[Kcbullets]

I should have mentioned it is a AR style build. But cycles factory with no issues.

 

[Ledd Slinger]

Your Base-to-Ogive (BTO) measurements dont match. Should never have a bullet pulled from the case when ejecting a live round. Seat your bullets deeper.

Might also need to bump the shoulders on the brass a little more if you haven't measured headspace on them yet

 

[Kcbullets]

Thanks Ledd Slinger. Fixed by adjusting the BTO. Much appreciated.

 

[DonB]

It does sound like the loads are too long but with the AR platform I always use Small Base dies. These will size the case further down than regular dies.

 

[DHD]

Are these reloads using 6mm ARC brass or reformed Grendel brass?

I agree if you are pulling bullets then you have a significant jam. Don't "all seem to be equal", know they are equal. If it's a case issue and they have been fired repeatedly, the resizing die may not be doing enough sizing at the base. I'm not a real fan of small base dies and like to get the case sized just enough (kind of a non descript definition I know).

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[Kcbullets]

I am using 6mm arc brass. By seating the bullet about .02 more now no issues. Even though my oal was ok my base to ogive for this bullet was not adjusted properly.

 

[searcher]

As others noted, If your son is using a factory sizing die (non-bushing) and not turning necks, he is seating too long if they are making contact with the lands (and bullets sticking on ejection). However, if using a bushing die and/or turning necks, there may not be enough neck tension to adequately secure the bullet in the case and stop it from moving during the loading cycle. If not enough neck tension, the bullet will get pushed into the case sometimes, causing hang-ups during loading. Other times, the bullet will continue moving forward into the lands when the bolt slams home. When ejecting those loaded cases, the bullet stays stuck in the lands when the rest of the case is ejected.