bolt sticking on a rem 700 308

[yo70sam]

Hello everyone, I am have been reloading for about a year now mostly 308 and 9 mm and I just reloaded a batch 308s. My problem is some of the rounds cause my bolt jam it wont open, it closes no problem pretty much normal until I try to open the bolt really hard to pull the round out of the chamber. I am neck sizing with lapua brass, I checked the headspace on my fired brass and my resized brass is .002 to .003 shorter cases are trimed to 2.005, rifle is a rem 700 heavy barrel. I also checked the oal on the bullets I am using 165 sst I am loading at 2.805 my chamber is 2.935 to the lands with that bullet. Never had this happen before I also ran a dozen 165 match kings factory loaded and they all extracted fine no jamming so I think my rifle is ok. I marked up with a sharpie the neck and bullet on the rounds that cause the jamming and there is a small mark on the bullet close to the neck of the case could this be due to bullet runout ??? not sure what else to check, any ideas or did anyone else ever have this happen. thanks in advance Sam

 

[witchhunter]

Try adjusting your sizing die up, sounds like you are sizing too much, causing pressure. What do the primers look like compared to rounds that eject easily? Flatter, I am guessing...

 

[yo70sam]

The primers look good nothing that suggest to much pressure, even the rounds that I don't fire just chamber still wont let the bolt come back without excess force, all brass was resized at one time some rounds work of and some jam the bolt without firing.

 

[1J04]

Obviously it's a Brass issue or a Bullet issue. I'd strip my Bolt and slide a round in the tube and see if the bolt will close without any force on the round. I'd make sure "I very gently" close and then lower the handle till I just started to feel any resistance, if at all. Odds are you're gonna find your Base To Ogive is too long or your Brass is over length, Head to Datum too long yada yada. If ya got a piece of fired Brass and a piece of your resized Brass laying around, before ya jam a live one in there do the same thing with the Bolt stripped and see if ya get any resistance outta them. Shit happens, give it a try. If ya don't have a really cool tool to pull your 700 bolt apart, field strip it with a piece of strong string or if you're wearing laces use them.

 

[buffybuster]

Try Full Length sizing the brass with the die correctly adjusted to your chamber headspace. This based on the assumption the brass has ONLY been fired in that chamber from new.