Bolt hard to close on Rem 700?

[corps2010]

I bought a box of 165 grain partitions for my Sendero .300 RUM and when trying to chamber a round, the bolt is extremely difficult/tight to close. HSM ammo feeds just fine. Any ideas what could be going on?

[bwssr]

factory rounds or reloads?

[Charrison]

I had this happen with some custom ammo for a .280. Turns out the neck of the cartridge was just a little too big and that was my problem. Believe it was a Nosler round- switched to ballistic tips, same weight, and bolt worked just fine.

[Outbreaker]

If it is brass that has never been fired from your rifle (even new) the headspacing can be off a little and cause a bolt to close hard.

I shoot the .300 RUM and have seen it more than once. This is a big reason I reload for it.

[Jakesfish]

Its in the casing, doing reloading for awhile, I have run across this w/ reloading, and some guns are tight chambering too...

[cmh2007]

More than likely it's the case was improperly resized? Usually shoulder is not set back far enough, or the roll crimp is improperly set up causing a slight bulge at the neck shoulder junction

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[kornsqueezer]

[QUOTE=Outbreaker;12573522]If it is brass that has never been fired from your rifle (even new) the headspacing can be off a little and cause a bolt to close hard.



X2

[Maxlab]

Very common for problem for a Remington 700. You just need to polish the chamber and you will be good to go. Does not cost much.

[emanon6]

I'm sure you know your gun well, but in my 7mm rem mag., the bolt is hard to close if I put the bullet straight into the chamber as apposed to loading into the magazine first. Probably not your issue, but something I had to figure out.


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[Outbreaker]

I'm sure you know your gun well, but in my 7mm rem mag., the bolt is hard to close if I put the bullet straight into the chamber as apposed to loading into the magazine first. Probably not your issue, but something I had to figure out.


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I bet yours is a control feed not a push feed like the 700.

My 1917 enfield is that was as are other actions that are based on the Mauser control feed (mod 70 etc)

[GarGuy]

Do the hard to close loads group better? If its a head space issue,, the load very well may shoot tighter. Could be a seating debth issue as well. look for excess pressure signs on the hull.

[corps2010]

These are factory loads. And i appreciate the feedback. I may get the chamber polished and see if I can find somebody to handload some rounds for me. And as far as accuracy goes, the HSM rounds actually shot a little better than the partitions did just from the little I've shot the partitions. I just wanted to make sure they were safe to shoot since I hadn't experienced an issue like that before.

[M16]

Could be a seating debth issue as well.

This is probably the most likely cause. You would think factory ammo would be SAAMI spec but you never know.

[dustoffer]

Load a round, close the bolt, and then extract it and look for rifling marks on the bullet---which would indicate the cartridge's OAL is too long and bullet is being jammed into the rifling. Don't think it is likely with factory ammo though--

[Drycreek3189]

Load a round, close the bolt, and then extract it and look for rifling marks on the bullet---which would indicate the cartridge's OAL is too long and bullet is being jammed into the rifling. Don't think it is likely with factory ammo though--

You might also takes a magic marker and color everything on the front end, chamber a round and see if any of it is scratched off and where.