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Thread: RCBS 264 LBC dies same as 6.5 Grendel specs?

  1. #1
    Vnemecek
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    RCBS 264 LBC dies same as 6.5 Grendel specs?

    I'am looking to purchase a set of RCBS dies for my 6.5 Grendel. Thanks! John

  2. #2
    First, welcome here, good to have ya! Not sure of the answer to your question, but the 264 LBC chamber keeps the same case dimensions, so I'd be surprised if the dies mattered. Just a guess, though.

    John
    :: 6.5 GRENDEL :: Make ARs Great Again ::

    :: I Drank the Water :: Revelation 21:6 ::

  3. #3
    muttdog
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    I was wondering the same thing. I am having serious issues with my Hornady dies. I can eject factory ammo , but not handloads from my Hornady dies. Im thinking that they are out of spec just a tad. ill be keeping up with this post to see if anyone else chimes in.

  4. #4
    GLShooter
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    The dies are the same. I use Reddings or a set of Hornady.

    As to not being able to eject ammo if you mean loaded rounds you probably need to bump the shoulders back another 0.002 or so. That rears it's ugly head a bunch.

    Greg

  5. #5
    So the RCBS .264 LBC-AR SB T/C Die set will work for the Grendel cartridge?

  6. #6
    Chieftain
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    I bought a set and they seem good to me. I have used them with 6.5 Grendel AA (Lapua) brass, so far so good.

  7. #7
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    Quote Originally Posted by WHITEBULL View Post
    So the RCBS .264 LBC-AR SB T/C Die set will work for the Grendel cartridge?
    WB:

    Absolutely correct. There is no, zero, none -- nada -- difference in chambers between the LBC and the Grendel. The dies are identical. The throats are different. The Grendel uses a compound throat and the LBC a more conventional throat with more leade. So, if you are fine tuning overall length, you may find a difference. However, in terms of the brass being sized down to the correct dimensions, there is no difference. The chambers are the same.

    I would say that 95% of the problems with chambering and extracting sized brass is the handloader failed to bump the shoulder back enough. The other 5 % is because the handloader seated the bullet too far out of the case for proper chambering.

    The topic of bumping brass and cartridge OAL comes up about twice a month.

    LR1955

  8. #8
    Chieftain NugginFutz's Avatar
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    Quote Originally Posted by LR1955 View Post
    The topic of bumping brass and cartridge OAL comes up about twice a month.

    LR1955
    At least.

  9. #9
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    So the LBC 264 barrel shoots Grendel ammo fine then? There is an 18" for sale and I was wondering if that will work ok.

  10. #10
    Chieftain NugginFutz's Avatar
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    Quote Originally Posted by Tedward View Post
    So the LBC 264 barrel shoots Grendel ammo fine then? There is an 18" for sale and I was wondering if that will work ok.
    Tedward:

    The short answer is yes..

    For all practical intents and purposes, any factory 6.5 Grendel ammo will run in the .264 LBC chambered barrels.

  11. #11
    Chieftain Drifter's Avatar
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    Quote Originally Posted by LR1955 View Post
    There is no, zero, none -- nada -- difference in chambers between the LBC and the Grendel. The dies are identical. The throats are different. The Grendel uses a compound throat and the LBC a more conventional throat with more leade.
    Doesn't change the feasibility of dies, but chamber neck diameters are also different. Grendel is .300" and 264 LBC is .295".
    Drifter

  12. #12
    mseric
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    Quote Originally Posted by WHITEBULL View Post
    So the RCBS .264 LBC-AR SB T/C Die set will work for the Grendel cartridge?
    I personally don't think this RCBS die set will work for you.

    I purchased a set of these dies from Midway. They were cut to small at the base/web and would size the base to the point of destroying the case.

    Here is a picture of what I experienced.



    I contacted RCBS and sent them the sizing die along with 4-5 fired cases.

    They were going to modify the SB die to fit my chamber, but decided to replace it with a Standard RCBS FL die as it was a perfect fit to my Grendel Chamber.

    I don't know if I got a defective die or RCBS was manufacturing all of them to small, but they admitted that the die was undersized. I also don't know if they went back to the drawing board and fixed their F-up or of they are still sending out undersized dies?

    Good Luck.

  13. #13
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    Quote Originally Posted by mseric View Post
    I personally don't think this RCBS die set will work for you.

    I purchased a set of these dies from Midway. They were cut to small at the base/web and would size the base to the point of destroying the case.

    Here is a picture of what I experienced.



    I contacted RCBS and sent them the sizing die along with 4-5 fired cases.

    They were going to modify the SB die to fit my chamber, but decided to replace it with a Standard RCBS FL die as it was a perfect fit to my Grendel Chamber.

    I don't know if I got a defective die or RCBS was manufacturing all of them to small, but they admitted that the die was undersized. I also don't know if they went back to the drawing board and fixed their F-up or of they are still sending out undersized dies?

    Good Luck.
    When did you get those dies?

  14. #14
    mseric
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    Quote Originally Posted by Tedward View Post
    When did you get those dies?
    Jan. 2013

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    That's scary. They wonder how many are out there??? Does anyone else have that issue??

  16. #16
    Bloodstained
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    I have the RCBS catalog open in front of me and it says that the AR series dies use a small base sizer (SB) die, so I wonder if their version of the small base dimension is too small for Grendel brass. FWIW, I use Redding Grendel dies for my 264LBC-AR with no problems.

  17. #17
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    Quote Originally Posted by Zach987 View Post
    I have the RCBS catalog open in front of me and it says that the AR series dies use a small base sizer (SB) die, so I wonder if their version of the small base dimension is too small for Grendel brass. FWIW, I use Redding Grendel dies for my 264LBC-AR with no problems.
    Zach:

    We have been loading Grendel ammo on non SB dies since the cartridge came out. I believe there was one incident on the old forum where I recommended a SB sizing die to a guy. No one made them at the time but I thought his problems could be solved with a SB die.

    I don't have much confidence in RCBS so it would not surprise me their SB Grendel die did what it did to your brass. They made the die wrong, probably knew it, sold it anyway, and figure it is cheaper to let the consumer do their QC than for them to do it. I haven't bought RCBS gear for years because of this type of thing.

    Send the die back. RCBS will send you a new one. Hopefully, it will work. If not, send it back and they will respond with 'your chamber, loads, alignment of sun and moon', etc., were wrong and not them.

    LR1955

  18. #18
    mseric
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    The reason I bought the SB die was my Forster die was not sizing the case web down small enough.

    I "assumed" that all Standard FL Grendel dies were cut to the same dimensions and purchasing a Redding or Hornady or RCBS Standard sizing die would not solve my problem.

    For the first time in my life I thought I was going to need a SB sizing die for a semi-auto as all the standard dies would be the same.

    I was wrong!

    The problem was with the Forster FL die right from the get-go. Replacing it with a "Standard" RCBS sizing die has solved the problem. IMO the Forster sizing die is also cut wrong.

    Anyone want an RCBS 264 LBC Seating die? I still use my Forster Micro BR seater and do not need the RCBS seater.

  19. #19
    Warrior TropicalVibe's Avatar
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    Getting ready to reload my PPU once fired brass, I set up my .264 LBC SB RCBS sizing die and pressed out an empty cartridge. I noticed the case looked strange, kinda like a belted 6.5 Grendel. I am bringing this thread up, as I seemed to have the same problem, with the same set of dies, that I got from Midway within the past few months.

    I ran four of the cases and got the same result on all. Here is a picture of the case.

    Has anyone else had the same issue recently? I plan on sending these back to Midway.
    Attached Images Attached Images

  20. #20
    Super Moderator LRRPF52's Avatar
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    Looks like the exact problem above. Doesn't even look like it's safe to use with any Grendel brass at all, more like another case dimension entirely at the base.
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