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| Hey Rob... man this sounds just too cool!!!
I would still suggest the paradox, just to stay inline with the old 12 bore, but that's just me
any pics of this action?
How's the 600 coming? jeffe |
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| I'm in for a barrel.
I'd also be interested in a smooth bore. I would look at doing a screw in choke system one of which would be made from a rifled 12 ga barrel about 5-6 " in length. It would have to seat on the end of the barrel and have the threads opposite to the twist or it would unscrew when fired but by seating on the barrel end and not an inside shoulder a spanner wrench system to break it free should work fine.
Tell me when and where to send the money.
John |
| Posts: 855 | Location: Belgrade, Montana | Registered: 06 October 2000 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Would shotloads in the actual 12GFH cases work? Pressure shouldn't worry these cases or the action- might even be able to get 3 ounces in. Even with rifling that's a pretty serious payload for 'stopping cats'etc. as they used to do with the old guns.
Karl. |
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| Rob--That is great.I have info coming from Borchardt also on that action.Could use it for both 12GA FH and 700HE, with barrel change.How is John doing on scaling up the Win falling Block? When you order the barrels. I will get one also with you to make up the number needed for good price.The rifled will be fine, and have bucks saved for it.My hollow base bullets will work in rifled as well as smoothbore.They are now 750 gr and at that wt I will fill base with epoxy filler, which adds only 2 gr to do the first load testing.Further on in testing, put lead in base to add wt for more testing. Can get up to 1100 gr that way, using one design of John's solids So the rifled barrel will be fine.Ed. |
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| Karl-- Yes the cases Rob and I built would work for shot.Plastic shotcups would be the easiest way,and if long enough could hold 2-3 ounces. Make a great in close lion load with 2-3 ounces of buckshot.Ed. |
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| Rob,
What action can this be built on and how much do those actions cost? Thanks. |
| Posts: 18352 | Location: Salt Lake City, Utah USA | Registered: 20 April 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| 500gr--Can be built on McBros 50 cal action and other 50 Cal actions.McBros is about 2 grand.The barrels Rob is ordering are large enough diameter for 1.5 inch barrel threads, and still have a good shoulder to butt against front of action.The Borchardt falling block action will work great also.I think that is what Rob is planning on using.They are about 2 grand.Some of the fellows on here are also going to try them in singles and doubles at lower pressure to experiment and see what is possible that way. Later I plan to build up a special thickwall Greener-Martini Action to try it with at medium pressures.Ed. |
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| Thanks. Where can I find out more about the Bouchart falling block action? |
| Posts: 18352 | Location: Salt Lake City, Utah USA | Registered: 20 April 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| 500gr-All--Call Al Story at Borchardt Rifle-505-535-2923. He has a brochure he sends out.The action is huge and Al told me it is heavy and thick enough so there is no worry about weakness, that it can be slimmed down, depending on barrel size, case size and how much power you are putting through it.I will have son get a picture of it from brochure and post it later.Ed. |
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| Let me get this straight.
You've got a 50 BMG falling block action, and you're putting a 12 gauge rifled barrel on it (so its something like .730 caliber?) and then you're going to take a 50 BMG cartridge and open it up to seat a slug that's nearly 3/4"?!?!?!?!?!?!
That rocks!!!! |
| Posts: 510 | Location: North Carolina, USA | Registered: 27 August 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| You are right,That really rocks. And the greatest thing is using BMG brass and Rob and I figured a way to put a 12ga size rim on it.Here is pic with regular 12ga case and 12GA FH.Posting these are fun.Ed. ![](http://www.gunownerstv.com/1212.jpg) |
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| So ,will it use 3 1/2" super mag shells as well? Might make it more versatile. |
| Posts: 618 | Location: Singleton ,Australia | Registered: 28 November 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Rob-Called Pacnor,and got barrel ordered.Money goes to them tommorrow.That bullet in the case is just show, being and ole Foster shotgun slug.Made a nice picture.I have the 750 gr hollow bases ones from John here now. Will be able to test in different wts by filling base with lead, to get wt up to over 1100 gr.Doing all we can to help the hemmoroids with their hemmoroids.Ed. |
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| Will brass be available for purchase, or if not, what type of equipment will I need to make the brass?
Thanks. |
| Posts: 18352 | Location: Salt Lake City, Utah USA | Registered: 20 April 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Seems like 1:20 is at least twice as fast as one would need in 12 ga. Have you done the math with the Greenhill formula? The old 12 bore rifles had about 1:100 for use with roundballs.... |
| Posts: 27 | Location: Athens | Registered: 13 November 2003 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| The 1/20 twist is for heavy bullets that we plan to use,as we develope loads, like up to 12-1500 grains.Ed. |
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| Hi Ed,
I've got a 2050 gr .700 cal bore rider for the 700 BMG. I would bet you could get to 2200 gr with out much trouble in the 12 GAFH. The 1:20 should work fine for those as well. John |
| Posts: 855 | Location: Belgrade, Montana | Registered: 06 October 2000 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Would these Bordacht actions take the .700 Nitro round ?? I am a little confused about what the 12 g from hell actually is ![](/ubbthreads/images/graemlins/confused.gif) |
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| Here is picture of the BORCHARDT ACTION. Yes it works for 700 NE, 50 BMG(which is one in picture),Rob's 700BMG Imp,My 700 HE, and our 12GA From Hell.Ans of course for 600NE, 577NE, and any thing else.Our 12GA FH is a long brass 12ga case made from BMG brass, that can shoot heavy slugs faster than the 700 NE can, and the brass is a small fraction of the costs.And the chamber can still shoot shotshells.The Borchardt is big and can be lightened and slimmed down(It is 2.25 in wide) as needed depending on cartridge...Ed ![](http://www.gunownerstv.com/bor.jpg) |
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| Several question's 1. Wich cartrige has more case capacity, 12gfh, .700 BMGImp, or the .700 HE? 2. Is it possible for you to post a picture of the three cartriges mentioned in my first question, together side-y-side prefferably? 3. You mentioned that the McMillan action has problems extracting the 12gfh round; to your knowlege Mr. Hubble, does that same action have problems extracting your .700HE as well? Thanks in advance for taking the time to answer some, if not all of my questions. ![](/ubbthreads/images/graemlins/wink.gif) |
| Posts: 98 | Location: Fredericksburg, VA | Registered: 30 December 2003 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Nishoba--I don't have one of Rob's 700BMG IMP to put with the others for a picture.As Rob said 12GA FH holds the most, His 700BMG Imp second with about 5 grains more than my 700 HE.His case has small shoulder, mine is straight sided with a belt.Both his and my cases extract great in any action big enough for them.The recoil of both 700's as well as 12GA FH will tip over a truck, We won't be overloading them.I have to get a 700 case from Rob and post them altogether.There is picture of 12ga regular case with a 12 GA FH on here somewhere.Ed |
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| Quote:
Nishoba--I don't have one of Rob's 700BMG IMP to put with the others for a picture.As Rob said 12GA FH holds the most, His 700BMG Imp second with about 5 grains more than my 700 HE.His case has small shoulder, mine is straight sided with a belt.Both his and my cases extract great in any action big enough for them.The recoil of both 700's as well as 12GA FH will tip over a truck, We won't be overloading them.I have to get a 700 case from Rob and post them altogether.There is picture of 12ga regular case with a 12 GA FH on here somewhere.Ed
If I were to build a 24# .700 HE or BMGimp rifle using the McMillan action (7#'s by its self)with a Big Mack stock ,a 2' diameter 33" long Lilja barrel and added a fishgill type muzzle break, the recoil shouldn't be too unbearable even with hot loads...should it? At the very least it should be a heck of a lot more manegable and fun to shoot then an un-breaked 15# rifle, whats more, you should be able to load the .700HE close to its full potential with such a setup.
So Mr.Hubble and/or Mr.Robgunbuilder, am I being realistic with the felt recoil expectation's with the aforementioned setup, or unrealistic?
P.S. Sorry to have hijacked your thread sir, any further questions regaurding the .700BMGImp or .700 HE will be PMed to either Mr. Hubble or Mr. Robgunbuilder. |
| Posts: 98 | Location: Fredericksburg, VA | Registered: 30 December 2003 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| I got a flyer on the Borchart falling block suitable for the 12 ga FH cartridge. The action is gigantic and looks like it would be a bit large for a gun to be carried - more of a bench rest affair.
I think I am going to pass on this project, at least until I get my 600 OK finished (or started, assuming Dieter makes the brass). |
| Posts: 18352 | Location: Salt Lake City, Utah USA | Registered: 20 April 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Rob In the new addition of Cartridges of the World J.D. Jones has a 700 on the 50 BMG case classified as a sporting cartridge not as a destructive device. So your 700 imp should be ok if J.D. Jones is.
RNS |
| Posts: 767 | Location: Phoenix, Az | Registered: 31 May 2001 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| THAT'S A BORCHARDT? As in Sharps model 1878? I don't think so. Indeed, there is a company coming out with a remake of the 1878, but that's not it. What is that thing, besides ugly, to this beholder?
Brent |
| Posts: 2255 | Location: Where I've bought resident tags:MN, WI, IL, MI, KS, GA, AZ, IA | Registered: 30 January 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Can't scan right now but I can send you a fax a copy. Check your fax same number as before.
There is always more than one way to skin a cat
RNS |
| Posts: 767 | Location: Phoenix, Az | Registered: 31 May 2001 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| heck it looks even less like a Highwall. I don't see an underlever, but then it's not a great picture. Any website for these folks? Here is a real Borchardt... Brent |
| Posts: 2255 | Location: Where I've bought resident tags:MN, WI, IL, MI, KS, GA, AZ, IA | Registered: 30 January 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Quote:
THAT'S A BORCHARDT? As in Sharps model 1878?
No, they make 2 actions. One is a sharps, and the other is the giant hi wall which makes the sharps look like a toothpick. Undoubtedly it will handle the 12 ga FH pushing bore riders at 3000 fps, and that should be hellish for shooting mountain top to mountain top, but I don't think I am strong enough to aim it at a duck flying by. ![](/ubbthreads/images/graemlins/smile.gif) |
| Posts: 18352 | Location: Salt Lake City, Utah USA | Registered: 20 April 2002 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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| Rob
Did you recieve the information?
RNS |
| Posts: 767 | Location: Phoenix, Az | Registered: 31 May 2001 | ![Reply With Quote Reply With Quote](https://forums.accuratereloading.com/groupee_common/ver1.3.7.2147483647/platform_images/blank.gif)
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