RCBS Rock Chucker - Will it load .470 Nitro?

Discussion in 'Reloading' started by deewayne2003, Feb 11, 2020.

  1. deewayne2003

    deewayne2003 AH Member

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    Gentlemen,

    While I am no stranger to reloading ammo, this is my first attempt at loading for my new .470 Nitro Express.

    I have an RCBS Rock Chucker(Not supreme) and the clearance is showing to be 3.5"

    Question is...

    Will this press be able to size and load .470 Nitro Express with the case being 3.25" and the OAL of the loaded cartridge being 3.98"?

    Not looking for mass production, just wondering if its possible.
     

  2. Ridge Runner

    Ridge Runner AH Fanatic

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    FIRST STEP:
    Call RCBS Tech Service for professional advise and recommendations!!!

    I will have to refresh myself on the Rock Chucker, as I have an RCBS turret press and Lee single stage press.

    For now:
    Is this a progressive press?
    Inline or rotary (circular) design?
    Are your intentions to attempt to use this press as a single stage or turret press?

    Using a loaded factory cartridge:

    Insert the cartridge into the shell holder: Can you insert and remove the cartridge: in and out of each of the dies?

    Can the dies be adjusted and secured to allow proper function of the respected die?

    It would seem the brass will easily load into the press. However,... once a bullet is seated you may have to angle it free of the shell plate and die.

    The clearance issue could be anything from a pain in the ass to a major (remove the die each time to remove the completed cartridge) problem.
     

  3. deewayne2003

    deewayne2003 AH Member

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    Its a single stage rock chucker, that I have not bought yet..... trying to make sure it will work before I have a buddy ship it to me.

    IMG_8359.JPG
     
    Last edited by a moderator: Feb 11, 2020

  4. PHOENIX PHIL

    PHOENIX PHIL AH ENABLER AH Ambassador

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    I have the Supreme and it works, but it's close. I feed the bullet up into the seating die with my fingers and then raise the ram until the bullet is touching the case mouth. If I try to put in case mouth first, there's not a lot of clearance.

    But I think your problem is going to be removing the loaded round even if you can seat a bullet. I think you may not be able to as the bullet will be too far in the seating die and you won't be able to slide the case out of the shell holder.

    But there's really only one way to find out......
     

  5. Bullthrower338

    Bullthrower338 AH ENABLER AH Legend

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    I have loaded them on a rockchucker, you have to do just like Phil is saying, feed the bullet into the seating die first, after it is seated, I had to unscrew my die several turns to get the loaded round out of the shell holder. I bought a 50 BMG press because I needed one and to load the 470 and 505 Gibbs on. The rock chucker is a pain but not as bad as paying for loaded ammo!
     

  6. DrBob

    DrBob AH Member

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    Go with Hornady Lock-N-Load Die Bushings. This allows quick detach of dies. You could then put case in press with powder, raise case to put bullet in mouth, put seating die over and lock die in place... seat bullet... remove die and remove loaded round. Takes longer to read this than to do it. The Bushing base replaces the insert at top of press...if it is like the Supreme with removable insert. for regular dies.
     

  7. Shootist43

    Shootist43 AH ENABLER GOLD SUPPORTER AH Legend

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    Loading the 470 NE in a Rock Chucker Supreme is a fairly straightforward process.
     
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  8. CAustin

    CAustin AH ENABLER BRONZE SUPPORTER AH Ambassador

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    I know the Rock Chucker Supreme works very well. Friends help me select that press specifically for the 470 NE
    412787AA-E552-47B0-99D4-9F6B81618C82.jpeg
    AH member @Shootist43 helping me learn that skill!
     
    Last edited by a moderator: Feb 12, 2020

  9. Excessexpress

    Excessexpress AH Senior Member

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    I managed to put together a few hundred on a Lee Hand Press so I would think a Rock Chucker will do it nicely.
     

  10. sestoppelman

    sestoppelman AH ENABLER AH Ambassador

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    Oh it will do it, just how much trouble do you want to go thru to load one round? I have to do the tip method with any number of longer rounds, but at nearly 4", it would be a pain. I think I would look into a taller press, made for these long rounds.
     
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  11. deewayne2003

    deewayne2003 AH Member

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    Agreed!

    Currently looking for a Lee Classic Cast - Not fancy but it will be the dedicated .470 press
     

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