Trouble reloading for Rem Mohawk 600.

Sasquatch807

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I need advice with a problem I'm having.

When I reload for my Remington 600 Mohawk .308 the cartridges are very hard to chamber in that rifle but OK in other .308's. I've tried RCBS, Hornady and Lee dies with the same results. I dipped a reloaded cartridge in machinists ink and them chambered it to see where the friction occured and the the ink was rubbed off near the base of the casing. How can I solve this problem?
 
Sounds like you've got a tight chamber, or else your dies aren't bringing the brass back into SAAMI spec. Do you full-length resize your brass?

Was there any ink rubbed off on the bullet nose? I had a 600 that wouldn't chamber 180+ grain bullets; they would fit through the mag, but the throat wasn't long enough to accomodate them.
 
Bishopus said:
Sounds like you've got a tight chamber, or else your dies aren't bringing the brass back into SAAMI spec. Do you full-length resize your brass?

Was there any ink rubbed off on the bullet nose? I had a 600 that wouldn't chamber 180+ grain bullets; they would fit through the mag, but the throat wasn't long enough to accomodate them.


Yes, full length resized and no ink rubbed off nose (150 gr. Noslers), just near the base all around the case.
 
Sasquatch807 said:
Yes, full length resized and no ink rubbed off nose (150 gr. Noslers), just near the base all around the case.

Your shell holder is firmly touching the die on full upstroke when you are sizing the case?
 
IIRC a small-base die will bring the 'bottom' of the case down to SAAMI min spec, so even if the rifle's chamber is tight it should take the brass just fine.

BTW, are you able to chamber brand-new brass?
 
Small base dies are made for auto loaders and lever guns that sometimes require closer overall brass tolerances when sizeing so they will chamber 100%..
....they do make them in .308 too....(RCBS ) and will reduce bases more than regular dies..


...........your mileage may vary
 
Bishopus said:
IIRC a small-base die will bring the 'bottom' of the case down to SAAMI min spec, so even if the rifle's chamber is tight it should take the brass just fine.

BTW, are you able to chamber brand-new brass?


Yes, no problems with new brass or commercial ammo.
 
Try this little trick. Chuck one of those FL sizing dies in a lathe and take .005" off the bottom of the die. Then readjust the die to bump up on the shellholder and try sizing some brass. I had to do this to my M600 22-250 to get it to size the case enough. However if this moves the shoulder back too far, you will need a small base die to do the job. Regards, Eagleye.
 
Oversize Base

Don't trim anything off a new set of dies that might work good with something else. Rcbs sells small base dies in a set or just the sizer die. These were made for the levers and semi's but some of the bolt chambers are a little tite. I'm sure the SB sizer will fix your problem Bob
 
Get yourself a Redding body sizing die. You can run loaded rounds through these without a problem. It will re-size the body and bump the shoulder back to spec. They cost about $20 so get one for every bottleneck caliber you reload for.
 
I have a similar problem with an Austrian Voere 2185 30-06 semi automatic rifle.

My opinion:

Your throat is short (try 165 grain max weight, using a lead cored bullet only)
The chamber is almost / or is, a match grade ( very tight)
This requires full length sizing,
( being very careful to size as much of the case as possible, with a quality made small base die )
Basically I fully agree to what bob347 said.

Cheers and Good luck....
 
Eagleye said:
Try this little trick. Chuck one of those FL sizing dies in a lathe and take .005" off the bottom of the die. Then readjust the die to bump up on the shellholder and try sizing some brass. I had to do this to my M600 22-250 to get it to size the case enough. However if this moves the shoulder back too far, you will need a small base die to do the job. Regards, Eagleye.

Instead of taking the .005" off the die try removing the same amount off the face of your shell holder. It accomplishes the same thing however shellholders are much cheaper than dies - in the event you screw it up. Your die will remain useful for .308's with correct chambers.
 
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