Splain me this: Grinch VS Dasher

Discussion in '6BR, 6BR Improved & Wildcats' started by IdahoSharpshooter, Jan 3, 2017.

  1. IdahoSharpshooter

    IdahoSharpshooter Gold $$ Contributor

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    what is the difference in terms of case dimensions? I ask because I am going to order a reamer, and am undecided.

    thanks,

    Rich
     
  2. KMart

    KMart Gold $$ Contributor

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    Parent case for the Grinch is the 6.5 Grindel. so your first dimension you need correct is the boltface of your rifle. It requires a PPC diameter boltface.
     
  3. spclark

    spclark Gold $$ Contributor

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    So please 'splain to me what the heck is this grinch?

    I messed with 6.5 Grendel in spaceguns & a bolt gun (later had that barrel rechambered to 260REM), moved into 6RAT. Heard of 6mmAR & variants, forget what the necked-down-to .224 is called (anyone sqoze a Grendel down to .17 & want to talk about it?) so help me out with this'n.
     
  4. Phil

    Phil

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    Good question for Bart @ BartsBullets.........
     
  5. gunsandgunsmithing

    gunsandgunsmithing The best tuners and wind flags on the market Gold $$ Contributor

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    The unaltered Grendel case is a very good one and a good one to wildcat. It's essentially a formed ppc case with the shoulder moved .070" forward. The Lapua brass is wonderful and has small flash holes and uses small primers. I've been shooting it necked up to 30 cal for years now. I call it a 30 Major. At one time, the name Grendel was protected and could not be used.

    I'm ordering a 6mm version very soon and will likely do the same with a 22 version. Yes, it's been done already but mostly in gas guns. I want to see what not having to use a long drop tube and a slow pour is like, yet using hot 6ppc loads, or similar.

    The only down side is that the neck is shorter than a ppc or a br neck. --Mike
     
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  6. GSRswapandslow

    GSRswapandslow

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    it uses a PPC boltface, not a 223
     
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  7. IdahoSharpshooter

    IdahoSharpshooter Gold $$ Contributor

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    Thank you all, gentlemen.

    Rich
    :)
     
  8. spclark

    spclark Gold $$ Contributor

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    Wouldn't surprise me to learn Bill Alexander still protects his cartridge's ID. He invested a lot of time & trouble getting it developed, SAAMI to certify it, then $$$ to get Lapua to make good brass.

    Les Baer sells under a 264LBC-AR tag... virtually identical.

    As for short necks... check into Stan Ware's 30 Wolfpup or R. Chombart's 284/260INCH cartridges and how they perform.
     
  9. gunsandgunsmithing

    gunsandgunsmithing The best tuners and wind flags on the market Gold $$ Contributor

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    Certainly not as short as the Wolfpup...you are correct. I'm not familiar with the 284/260 you mention. Here's a quick link about the release of the Grendel trademark. I'm sure a more thorough search will give a more direct answer, as would a call to Bill Alexander. Be forewarned...it's hard to get off of the phone once you get hold of him. Lol! http://www.gunsandammo.com/blogs/news-brief/alexander-arms-relinquishes-6-5-grendel-trademark/

    I spoke with him at length when I decided to use the Grendel as a base for my 30 Major, in 2007. As I said...great li'l cartridge!
     
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  10. mr.big

    mr.big

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    if you have a bolt that will take the PPC and BR cases what would be the advantage of the 6 Grinch over using 6BR brass with no fireforming,,just turn necks and go,,
     
  11. gunsandgunsmithing

    gunsandgunsmithing The best tuners and wind flags on the market Gold $$ Contributor

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    Good question. I've always felt that the 30 Major holds a very small accuracy advantage over a 30 BR. I won't make any earth shattering claims, for a couple of reasons. First, it'd be hard to prove except for on the target. The difference..if one, is not what I'd call earth shattering....even if it does hold the world record for smallest group at 100..EVER fired in competition!;) Second, my "theories" would start a whole 'nother topic.

    I'll stay with saying that the Grendel case is a very good platform...particularly for a dedicated PPC bolt. I have no doubt that the Grinch will shoot.
     
  12. mr.big

    mr.big

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    I am sure the Grinch will shoot also,,but all I shoot is 100/200 yard UBR Score,,I think I am gonna shoot the straight 6BR this year so I can always have good fresh brass without all the hassle,,I believe my biggest screw up last year was shooting the same 150 pieces of brass all year,,
     
  13. gunsandgunsmithing

    gunsandgunsmithing The best tuners and wind flags on the market Gold $$ Contributor

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    Going from "bad" or worn out brass is like a new barrel, but not if the brass isn't on it's way down. I've pushed my 30 Major Lapua Grendel brass beyond 50 firings with pretty hot loads. I shouldn't have pushed it that far before starting over with new brass, as it did fall off accuracy wise, at some point near there. It's hard to say exactly where though....And, there's a lot more to brass life than just saying " I get x number of firings and you should too." I will say that, based on reasonable load pressures, good sizing technique and perhaps an occasional annealing...you should expect your brass to last for the season without issue. Of course, that depends on the factors I already mentioned, plus how many matches...etc.
     
  14. BartsBullets

    BartsBullets Gold $$ Contributor

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  15. KWeigel

    KWeigel whunt_64

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    Wait! I thought that was a beagle?
     
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  16. ttfreestyle

    ttfreestyle Gold $$ Contributor

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    You mention occasional annealing, speaking short range only at what frequency do most anneal? Or do they just get new brass?
     
  17. BartsBullets

    BartsBullets Gold $$ Contributor

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    Dasher/Beagle!!! What's the difference? Both will run off and leave your Butt!
     
    Last edited: Jan 4, 2017
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  18. Tim Singleton

    Tim Singleton Gold $$ Contributor

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    I don't think many anneal most necks are to thin.
    Just grab a tighter bushing
    Many make up a fresh set of cases during practice for that particular match and barrel
     
  19. BartsBullets

    BartsBullets Gold $$ Contributor

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    As Tim says below not many short range guys anneal. However, most of the of the guys I work with anneal. It's kind of hard to hide the big Benchsource annealer in the camper. So it's catching on.

    I prefer annealing after every firering with my PPC!

    Bart
     
  20. BartsBullets

    BartsBullets Gold $$ Contributor

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    Idaho

    Here's a pic comparison.

    [​IMG]
     
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