.700 ***, from scratch

[JTknives]

It is now time to post this here as im coming to a close on the project. First off about the round, its call the 700 ***. it got its name from the members here. i posted a pic of the round in chat and the first response was "***" so it stuck. the case is made by fire forming 50 bmg brass to the chamber and then trimming to 3" long. then press it into a neck sizer and seat a .700 cal 1132gr cast paper patch boolit. according to my numbers this gun with its 16.25" barrel will push that 1132gr boolit to over 2000fps and up to around 2300fps. The gun is made by me from scratch and weighs in at 15lbs. its a single shot with a shell holder bolt. the optic is an Aimpoint comp M4 and handles the recoil like a champ. the grip is a magpull grip made for an AR and the recoil pad is a limb saver. so enough talk here are the pictures.

here is a picture of a loaded round
http://a8.sphotos.ak.fbcdn.net/hphotos-ak-snc6/285067_2326263683043_1443189422_32755423_8309988_n .jpg

here is an overall picture of the gun and some ammo
http://a6.sphotos.ak.fbcdn.net/hphotos-ak-ash4/267235_2297652847790_1443189422_32714736_3675712_n .jpg

The scope rail that i had on the run would not handle the recoil and was smashing agenst the lug on the scope base. so i had to rethink how to attach the scope. and this is what i made to solve the problem.
http://hphotos-sjc1.fbcdn.net/251532_2334878258402_1443189422_32764513_189259_n. jpg

http://hphotos-sjc1.fbcdn.net/223634_2334929619686_1443189422_32764631_111274_n. jpg

and last nite i got her all painted up and she is ready to go stalk some antelope now
http://a1.sphotos.ak.fbcdn.net/hphotos-ak-snc6/228875_2337559285426_1443189422_32769154_3626563_n .jpg

http://a2.sphotos.ak.fbcdn.net/hphotos-ak-snc7/292465_2337612766763_1443189422_32769263_3127282_n .jpg

And i took it with me to BBPDS last weekend and we all had fun shooting it. these where semi mild loads as this thing can be loaded up real nasty. here is a compiled video i did of the shooting.
http://www.youtube.com/watch?v=kFYXTH7Gdhk

[oneokie]

Very nice, JT.

[mrwhite]

Even nicer with the paint JT.

[Catshooter]

Fascinating and very nice build.

Where'd the barrell come from?


Cat

[JTknives]

The barrel was made by krieger, Only the best would do.

[Triggerhappy]

What kind of accuracy have you managed?

[Triggerhappy]

I'm impressed!

Watched the video. Was the bolt sticking after shooting?

[JTknives]

good eye, there was problems extraction cases. but this was not from firing it was from the parrent brass. most of my cases where made form once fired 50 bmg brass and the base of case was larger then my chamber and you could chamber the round but apon extraction it would stick. but the cases i made by fire forming new 50bmg would function perfect.

[Lonerider]

OOOOOOUCH! I hurt just looking at it!:holysheep

[JIMinPHX]

I don't know what kind of paperwork you have on that little honey, but I seem to remember something in the ATF rules that identified anything over .50 cal as being artillery or a destructive device or something like that. Shot guns shooting slugs got a special dispensation from that rule somehow, but I don't think that yours would qualify in the same way. You might want to look that up.

Sorry to be the bearer of bad news.

[JTknives]

it does. If its a sporting round its legal. its in the same class as the 700 nitro express. but yes normally anything over .5 is considered a destructive device.

[zuke]

WOW!
And nice!

[frykasj]

good eye, there was problems extraction cases. but this was not from firing it was from the parrent brass. most of my cases where made form once fired 50 bmg brass and the base of case was larger then my chamber and you could chamber the round but apon extraction it would stick. but the cases i made by fire forming new 50bmg would function perfect.

You may have to invest in a small-base .50BMG sizing die (if such an animal exists) to bring the base back into spec before fire-forming. I have the same issues shooting .308 Winchester cases from a semi-auto in a bolt-gun.

However, if the brass you got is one-off, I wouldn't worry about it.

[Markbo]

I would love to shoot that thing. Very nice... talk about out-of-the-box thinking! :D

[JJC]

I would love to shoot that thing. Very nice... talk about out-of-the-box thinking! :D

No kidding I like it

[runfiveswife]

You did a great job JT.. It looks great... Oh and thanks for picking my color...

[PatMarlin]

I never knew man could do such a thing ..:mrgreen:

[HollowPoint]

I dare you to shoot it without the muzzle-brake.

I seem to recall watching a video of a guy shooting a short barreled 50 BMG with no compensator present.

The recoil was such that it caused the hair-piece he was wearing to flop loose. That was one embarrassed bald-headed guy.

I like the way it looks with the camo-job; really tough looking gun.

If you were to take that bad-boy to one of the Texas Hog Hunting camps and set yourself up around a feeder or watering hole, I bet you could take out about three or four hogs with one shot if they were lined up just right.

That would be a video that would instantly go viral.

HollowPoint

[lavenatti]

If you were to take that bad-boy to one of the Texas Hog Hunting camps and set yourself up around a feeder or watering hole, I bet you could take out about three or four hogs with one shot if they were lined up just right.



If there were no hogs around he could always go kill a whale or shoot down a forest.:)

Beautiful job.

[Moonie]

Mastadon hunting, any marauding rhino's in your neck of the woods? Tanks?

[oneokie]

He is overrun with rabid prairie dogs.

[HollowPoint]

If you look at the video closely you can see a small hill in the extreme background with massive chunks of earth missing from it.

I'm wondering if those were rounds that shot a little high?

Those are earth-mover slugs he's shooting out of that gun.

HollowPoint

[NoZombies]

JT, I know you're young and all that, but one of these days, you're gonna need to put on your big boy pants, and step up to a real caliber... Like a .32

;) :p

Seriously nice work BTW, it's been fun talking to you about the project as it's been progressing.

[timbuck]

The pictures were nice, now how about some drawings with dimensions.

[Von Dingo]

Whiskey Tango Foxtrot is right! That is too cool, is the 20MM case the next wildcat parent?

[xfoxofshogo]

hay are you going to sell plans ^^ for building it :P

[JeffinNZ]

Brilliant You Tube. Amazing terminal performance.

[Lonegun1894]

hay are you going to sell plans ^^ for building it :P

If so, where do I send the cash, cause I think I just claimed second in line. [smilie=s:

[buck1]

WOW!
And nice!

I will see your WOW, and raise you a holy $h1t!
Nicely done!:shock:

[bigjason6]

Now thats what you call a hand held howitzer! I dare you to fire it one handed...

[JTknives]

well guys I have been away on vacation and am driving back home now. I brought the 700 with me but no one wanted to shoot it besides me. maybe it was because I had it loaded up even hotter then before. I managed 2 rounds back to back.

[Arisaka99]

well guys I have been away on vacation and am driving back home now. I brought the 700 with me but no one wanted to shoot it besides me. maybe it was because I had it loaded up even hotter then before. I managed 2 rounds back to back.

Two rounds??? [smilie=l: I thought you were more man than that!!! :p

[JTknives]

Im hoping to man up and do 5-10 rounds tomarow but man its not something i'm looking forward to lol

[HollowPoint]

Its' ashamed to have such an awesome gun and be apprehensive about shooting it.

On the other hand, it's completely understandable.

HollowPoint

[dougader]

That is some shoulder fired weapon. I'm impressed at what went in to creating this *** 700. Way cool.

[lbaize3]

I gotta have one of those for rabbit hunting! Ya know if you wound one of those cotton tails, they will charge......................................... That 700 could prevent serious rabbit chew marks on your tender booty.

[bcp477]

Wow. And a handy, short barreled carbine, too ! Most impressive.

[runfiverun]

couldn't just stop at the 180-185 gr load?
that was probably your best load, and the one i'd just go with.

[drhall762]

The .700*** is TFC. If you decide to make any specs or dimensional drawings available, put me on the list. Handguard looks like aluminum. Receiver 4140 PHT?

[Percival]

I like it. A lot. Nice work, and I look forward to the next creation :bigsmyl2:

[G. Blessing]

Holy ****!

Greeeeaaat job though!

I want it. can you say ultimate bear defense? ;-)

G.

[M.A.D]

Since Australia has become the land of Retarded gun laws by the Fun Police, we are always looking for new ways to hunt pigs....And i think we just found it....
So whens it going into production?
And when do i get one?
And is using a screw in flash tube possible to use magnum primers.. ( BMG primers here are next to impossible to get )
Failing all that, sell drawings..... Id pay $100 for a set....
And try a projectile like this.....
And i cant load a pic of it off my comp????? hmmmmm

[JTknives]

i am in the process of designing a bolt action version that will hold a total of 3 shots. we will see how it goes lol.

[M.A.D]

I have two Fisher Mcmillan Shell Holders sitting in the USA with nothing to do since they banned 50's in my state...(QLD AUSTRALIA)
What would you charge to chamber and fit two barrels 16.5 inches long, fit two Fisher muzzle brakes?
I was thinking about the 50 spotter necked up too .700 and making a swage die set make a jacketed .70 cal version of a .45acp Federal Hydrashock projectile.. I made a mold for a 12 ga version that weighs 660 grain (that was the pic i was trying to post)
And do you have a private email address?

[phatman]

Hell of a gun.
I just got through watching the Youtube video of you shooting the high power load. Man dont try that with out the brake!!!
Do you have a rough idea what the chamber pressure was for that load???

Cheers and Good Luck
John

[CLAYPOOL]

If you get to Southern Illinois I will shoot it....

[camotruck]

I just watched the video. The hole in that plate is unreal *** and WOW all at the same time. Oh and lets not forget Are you Friggin' Kidding me !!! I love it and the sound track.

[arjacobson]

That sir has got to be the coolest round I have ever seen!! Nice work:mrgreen:

[jnovotny]

My God I gotta have one!!!!!! Just watched the U-Tube video and I am impressed.

[P.K.]

My God I gotta have one!!!!!! Just watched the U-Tube video and I am impressed.

I just had the same impression. I'd fire one shot at the range and wait for the flock to gather. That is a muffin slinger right there.:holysheep

[M.A.D]

What powder are you using in it?
Are you using BMG primers?
Or making thread in flash tubes for Magnum rifle primers?

[PatMarlin]

That is a muffin slinger right there.:holysheep


LOL ...muffin slinger.

[JTknives]

What powder are you using in it?
Are you using BMG primers?
Or making thread in flash tubes for Magnum rifle primers?

im using 50bmg primers, best way to light 200grs of powder lol. right now my current load is using 195gr of 4831SC and a 1132gr paper patched boolit. im am going to work up so loads using W748 so i can get my pressure up in the high 50k so i can get a cleaner burn and more velocity from it. also by my calculations i can get less muzzle blast by lowering muzzle pressure. i will do that by reaching max pressure sooner in the barrel and getting a more complete burn.

[PatMarlin]

The closest I ever got to shooting something like that was Bruce B's 50 cal AR at NCBS.

Holy cow! That was enough. Autta nick name it "Thunder Wonder" JT ...:mrgreen:

[P.K.]

Holy cow! That was enough. Autta nick name it "Thunder Wonder" JT ...:mrgreen:

Nah, we are talking about innocuious (sp) naming here, "Daisy Cutter" comes to mind. :wink:

Although I think JT may be on to something with the newer generation and all this texting and what not. "***" fits. If it ever get's to the manuals more than a few will be the same way....***?

[Mikepb42]

What materials did you use for the bolt and receiver, and what heat treatment did you apply? Did you send out the parts for heat treatment? Any estimates on chamber pressure and/or bolt thrust? I've started drawing my own bolt action with the help of the Ottenson books and some actual firearms engineering texbooks, but I would love some info from somebody who has the "hands on" knowledge from such a fantastic project.

[JTknives]

I have two Fisher Mcmillan Shell Holders sitting in the USA with nothing to do since they banned 50's in my state...(QLD AUSTRALIA)
What would you charge to chamber and fit two barrels 16.5 inches long, fit two Fisher muzzle brakes?
I was thinking about the 50 spotter necked up too .700 and making a swage die set make a jacketed .70 cal version of a .45acp Federal Hydrashock projectile.. I made a mold for a 12 ga version that weighs 660 grain (that was the pic i was trying to post)
And do you have a private email address?

I would do the job for one of the rifles in trade. That would mean no money out of your pocket for the conversion. but i don't know how shipping of the gun would work.

[Link23]

how much for one?

[50-170-700 sharps]

it looks like you're getting quite the market for these 700's, JT :-)

[leadman]

I think your next direction could be one in a Speciality Pistol!! Fire that one handed!

Very interesting. Have you gotten any game with it yet? coulda used that when the elk were trying to run me down a couple of weeks ago.

[chefcook]

I LIKE IT!!! I really hope you are going to share plans for this..

[JTknives]

when i built it i just made it as i went. i will be drawing it back up in auto cad, and if there is intersist i will release them.

[arjacobson]

I would love a set of drawings for this.. I like other forum members have said would be willing to pay for them.. Very neat rifle

[CLAYPOOL]

I would think there would be enought interest in them. I for one would like to purchase a set.

[P.K.]

when i built it i just made it as i went. i will be drawing it back up in auto cad, and if there is intersist i will release them.

If not the first, i'm in line for one! Don't forget the die and mold dimentions!:redneck:

[Sixgun Symphony]

Very nice!


This would be a good weapon for Jurassic Park. :cool:

[JTknives]

last night i worked up to 185grs of w748 with the 1132gr boolit with no pressure signes. i will keep working up till i reach pressure max or 100% fill. if 100% fill is still not max then i will pick a faster powder and keep workign up.

[Brithunter]

Whilst not my style I can only applaud you and your creativeness :-P

The hole through the plate was neat in every way.

Perhaps you should consider a Double rifle so chambered :bigsmyl2:.

[phatman]

What is the highest velocity you have attained with the 1100 grain bullet so far??
You may well have built the Smallest, most Controllable, Monster Gun yet.

I sure wish you would post this over at Accurate Reloading foruns.
Those old farts would get a charge out of it.:razz:

Cheers, John

[phatman]

Oh, if you do design and build a magazine rifle.
You don't have to work on the magazine part. Saftey Harbor builds and sells a 50bmg bolt action rifle with a 5 round mag.
They sell thier 5 shot single stack mags for $100. It would save you a lot of time.

Cheers, John

[tacklebury]

As does Barrett with a 6 round for their semi... ;)

[JTknives]

What is the highest velocity you have attained with the 1100 grain bullet so far??
You may well have built the Smallest, most Controllable, Monster Gun yet.

I sure wish you would post this over at Accurate Reloading foruns.
Those old farts would get a charge out of it.:razz:

Cheers, John

O i am a member of Accurate Reloading forum ;). that is a good idea topost it there. there are some old farts that would like it lol

[dk17hmr]

JT is up here for the weekend, with the 700 *** of course. We spent yesterday making up some test loads with several different types of powder, we had velocities up to a little over 2000 fps and down just under 1200fps with the 1132gr paper patch slug, yes we had the chrono set up.

70grs of Trailboss was used for loads doing 1200fps, 70grs was just about filled to the bottom of the slug and amazingly easy to shoot, JT spun the brake off and gave it a try resulting in recoil about like a 12ga low brass target load. I feel if a person could hold the 15 pound rifle up they could shoot this load with the brake on.

I dont remember what powder it was or how many grains but the 1132gr PP boolit going just over 2000fps blew a 1" diameter hole through a 1/4" thick steel plate I had and didnt move the plate.

The new brake really tames the recoil and muzzle jump the down side is the blast, standing 10-15 feet away on the side video recording is almost not enough. But it is awesome to shoot.

[PatMarlin]

Outstanding.

[P.K.]

Lucky devil.

[Whiterabbit]

"what's that??"

"This is a muffin slinger, chambered in 700 ***."

"..."

hah.

[tengew]

i seen this on you tube love it if plans are available i would love a set:drinks:

[Hickory]

http://www.theblaze.com/stories/want-to-see-a-customized-700-caliber-dinosaur-hunting-rifle-in-action/


A member of the Cast Boolits firearms forums posted photos and video of this weapon and cartridges he built from scratch.

Everything you see below is customized craftsmanship, except the barrel.

[HotGuns]

I'd like some prints. After building 3 .50 cal rifles, this just seems like a natural thing to do.

[Heath2]

I'd also be interested in a set of plans.

[fireputrouter]

I would also like a set of plans and specs. This looks like a fun howitzer.

[3006guns]

Well, I looked at the pics, watched the video and read the comments. Frankly, that thing make the .577 T-Rex look like a .32-20! Excellent job!

[HotGuns]

I want a set of prints.

It'd be a kill hog gun.

[GUNSLINGER67]

Just joined the site to also get in line for a set of prints .
Beautiful craftsmanship , I love it !!

[saz]

Being an Artilleryman, I love anything that has a recoil pulse that feels like it will cave your chest in or push your eyeballs into your sinus cavity! I want one; OK maybe not, but I at least want to shoot it!

Has the overpressure made you sick yet JT?

[JTknives]

im working up a set of prints for it guys, it may be a little while.

[timbuck]

I want a set of prints.

It'd be a kill hog gun.

You won't have any meat left.

Also,
I'm in line for a set of prints too.

[David LaPell]

I guess it was between *** and Holy Sh**!

[GT27]

700 Tenderizer!

[timbuck]

Let's give this one a bump.
I still am interested in plans.

[drhall762]

Me too.

[TJF1]

Me too

[TripHlx]

Just giving this one a bump, because I am still interested in plans for this unique wildcat build.

[spuddicus]

haha wow... I'd love to see some plans

[HotGuns]

Plans man, plans!

[Moonie]

One does hope he didn't blow himself up...

:kidding:

[Bad Water Bill]

A bump out of curiosity.

How long till the BLOOD BLISTERS on your shoulder broke?:bigsmyl2:

[xacex]

I wounder if the BATF hush letter came yet? If they say it is ok I would be surprised, and interested in seeing one in action. Someone else shooting it of coarse.

[xfoxofshogo]

lol xacex come on you know you want to shoot it

And i like a set mabe you can send in a PDF ??

[cpileri]

Sir,
Can you go into some detail about your initial fireforming of the 50 brass? Any trimming /filing of the case head? was the rim wide enough to not fall into the chanber? what load did you use etc.
C-

[Thatoneguy]

Any updates on the plans?

[gunfan]

I viewed the video. The rifle was rather impressive. Taking such a rifle into the Alaskan alders wouldn't be out of place. I'd be willing to gamble that a big Alaskan Brown would drop as if it were the proverbial "sack of rocks."


Scott