Just finninsed my .510 wildcat!!!

[rufracer]

I built it on a savage action. Im getting a consistent 2115 fps with 649gr M8 API projectiles out of a 25" barrel, and sub MOA accuracy. Parent case is less than $1 each.

ballistics calculations
Indices Range
Range - yds. 0 100 200 300 400 500 600 700 800 900 1000
Velocity - ft./sec. 2115 1985 1860 1739 1624 1518 1418 1327 1246 1175 1116
Energy - ft.-lbs. 6425 5658 4966 4344 3789 3308 2889 2528 2229 1983 1788
Path - in. -1.5 0.0 -7.3 -24.7 -53.6 -95.8 -153.0 -227.5 -321.8 -438.5 -580.4
Time of flight - sec. 0.0 0.1 0.3 0.5 0.6 0.8 1.0 1.3 1.5 1.7 2.0

[swheeler]

RR; more details please! .510 hum, shortened RUM?

[only1asterisk]

You can just post that! Details!

[rufracer]

good show. any RUM but .338. The shoulder is about .050 lower.

I designed the round myself and had a reamer custom made. It is single shot, as the round is too long for the action. Ill be working on a shorter version that will mag feed over the next couple mo. I can make more.

any questions?

[swheeler]

Who's barrel and what twist? How long is the case and COAL? Sub MOA at what range, how far have you tested so far? What powder and charge? Planning on cast for it? Scot

[HotGuns]

Having built some .50's myself, that looks great. Post some more pictures. Post some more details.

North Arkansas? I'm in Northwest Arkansas. I want to see it in person. Are you a machinist or what?

Outstanding.

[exile]

I feel stupid for asking, but I guess I will. What exactly is the parent case being used? Are you using bullets from a .50 BMG? Forgive my stupidity but sometimes these disucssions are over my head. Thanks.

exile

[ANeat]

Very nice rufracer, very nice.

I need to work on those 50cal bullet swage dies now.....


Exile, he mentioned he is using RUM brass, that would be Remington Ultra Mag.

Something like this. the 375 RUM

http://stevespages.com/jpg/cd375remingtonultramag.jpg

[ANeat]

any questions?


When can I borrow thw reamer:bigsmyl2:

[exile]

Thanks.

[rufracer]

please pm me for specifics. I really dont want all my info floating around on the internet quite yet. I dont mind answering you guy individually but I dont want just anybody having access to all of it right now.

COL is around 3.9" depending on what bullet you use

ANeat, what kind of rifle do you want it for? I cant loan you the reamer, but I might be able to make you a barrel.

And yes, i am using bmg bullets

Hotguns, Im in Yellville, near Harrison and Mtn home. You can come shoot it any time. Ill pm you with my #

[rufracer]

900 yard is the farthest Ive shot it but 100 is the farthest I shot a group. .78" from a bypod if I remember correctly. Im no marksman though. Cuts through steel like butter too.

Im using 73gr of data 68. 2015 equiv.

[stubshaft]

Beeeuuooootiful!

[ANeat]

ANeat, what kind of rifle do you want it for? I cant loan you the reamer, but I might be able to make you a barrel.

Heck I dont know just yet, been kicking around the idea of something to shoot a 50 cal bullet on a smaller case.

Something a little bigger than SSK's 510 whisper.

If I come across an action and cant dream up anything different Ill be in touch.

[HotGuns]

That is cool. Yellville. Not to far from here.

What are you calling it? Its got to have a name.

[ANeat]

Oh No, I can see Hot Guns and Rufracer getting into some "projects" [smilie=w:

[HotGuns]

I've been thinking of a .50 something Whisper.

It would need to fit in a long action. Shouldnt be too hard to make a D reamer just for chamber or two.

I've got an 850 grain bullet mold that would work great. Think of it. A suppressed 850 gain bullet that would hit like a lightning bolt but minus the thunder.

[Dan Cash]

If pressures are not too wild (over 50,000), it wouild work on a Ruger #1 or a Shilo 1874 Sharps if you tinker the extractor.

[rockrat]

If you use a #1 action, you can go with the 50-90sharps 2.5" case


Nice looking round.

[bohica2xo]

I am surprised you are getting that kind of accuracy from the pulled M8 API bullets.

I get good accuracy from the current M33 ball projectile, but the API & APIT stuff does not shoot as well. Neither one shoots as well as a high end bullet.

If it shoots that well with the M8, it should be great with a better bullet.

Nice job.

B.

[rufracer]

yeh, I was suprised too. Ive only shot a couple groups with it so far though. Could be luck. I am working on a shorter version that will cycle in a long action savage. I already know what brass I will use too. Not RUM though, something cheaper.

Im taking orders for barrels.

[rufracer]

.50 razorback

[rufracer]

bumped

[HotGuns]

.50 Razorback.

That works for me. I love it.

Would this round work in a Remington Long action? Surely it would since you've got it in a Savage.

Buisness partner in RSVL eh? I have got to meet him...

[Faret]

What is the recoil like?

[deltaenterprizes]

What is RSVL?

[82nd airborne]

hey there, this is the russellville half of the op, both of us will just so happen to be in rsvl this saturday. let me know if you want to see it in person and maybe we can get together.

[82nd airborne]

What is the recoil like?

not bad out of a 19 lbs rifle

[HotGuns]

Its a small world aint it?

I'll be off this Friday. I'd like to see it. PM inbound.

[JFE]

In case you're interested a guy who posts on the Accurate Reloading forum has developed something similar. He had a series of them based on RUM cases and the 500 was designed to headspace on the case mouth. He used Win M70 CRF actions for positively retaining the case against the bolt face. He called the B&M wildcats and I understand SSK did the chamber work and have the reamers.

[rufracer]

JFE was that a .500 or a .510? Big difference in bullet selection there.

[Got-R-Did]

Here is another entry into this exciting concept. Cross Outdoors .50 TAC rifle and cartridge. The .50 TAC is new and you will have to email about the latest incarnation on the Remington 700 Long Action platform.
www.crossoutdoors.com
The bullets you might look into for your application provided in .510 diameter, particularly the Subsonic section of bullets:
www.lehighbullets.com
Just FYI.
Got-R-Did

[rufracer]

those look nice. I plan to make my own though. I may try a few to start out.

Ive run across the cyrus before. Very nice. It was one of many inspirations. I just wanted to feed it on the cheap.

[Got-R-Did]

Roger That, Kind Sir.
Got-R-Did

[rufracer]

the reamer for the sub-sonic mag fed .510 is on its way:bigsmyl2:

[Bullshop]

I see Savage has a new modular system 110 out with a single stack detachable clip chambered for the 338 Lapua. It was tested by the NRA staff at 1000 yards and turned in some very impressive groups with factory ammo. I wonder if that would be long enough for your 50?
BIC/BS

[CptnBarney]

JFE was that a .500 or a .510? Big difference in bullet selection there.

All 0.500" I believe ... using shortened RUM brass and now 375Ruger basic brass.

There's also a 510" short actioned wildcat floating about in Australia using (hazy memory) a 505Gibbs or 500Jeffery sized case with rebated rim and shortened to 2.1" for primarily subsonic use.
Cheers...
Con

[82nd airborne]

more pictures of the .50 razorback project!

[rufracer]

bullshop,

It is about .4" short for the razorback when using bmg bullets, but it would probably work with some .510 hunting bullets. The only problem is, the .338 savage is $2000 before you put a .510 barrel on it. I wonder what they would sell an action for.

[82nd airborne]

we got 3100 fps with 300 gr barnes bullet, without pressure signs, thinking maybe we can push it to 3300 fps!

[smokemjoe]

I think CBE makes a big 50 Cal. mold for your size.

[82nd airborne]

yeah, ive got their 975gr on order, but they are reworking the mould so itll be early may before i am able to get my hands on it.

[crabo]

Hotguns, Im in Yellville, near Harrison and Mtn home. You can come shoot it any time.

My FIL just sold his home in Harriett and moved back to North Dakota. Too bad, I would have liked to check that gun out.

[Artful]

Need cartridge - like the looks of your 50 hush-puppy as well - will that one fit in a short action? Where can I find more info on it? base case etc.

[82nd airborne]

yes it does fit in a short actoin, im building one in a short action on an m70. just waiting on the reamer and it will be done, and as soon as it is there will be pics up. pm me with specific questions about the round.

[Dannix]

What's the case OAL on the .50 Razorback? I assume you're just cutting right at the shoulder?

[rufracer]

1.69" so yes, pretty much right at the shoulder

[Dannix]

For the Razorback? 1.69" case length, seems like that would be the Hush Puppy. I'm guesstimating 2"+ for the Razorback just looking at the photos.

[82nd airborne]

Dave was thinking Hushpuppy right there Dan. The RB is 2.375

[rufracer]

yeah sorry, I went to school in the ozarks.

[Dannix]

haha. No problem. :)

[82nd airborne]

so dave, for these guy's ar's we can cut one 20"bbl in half and get two 16" bbls and itll be cheaper right?

[Dannix]

Hum, maybe we shouldn't get uppers from you guys... :mrgreen:

[82nd airborne]

haha, you get 3 bbls out of a 20"?

[Dannix]

The .50 Razorback is on wikipedia now. :)
http://en.wikipedia.org/wiki/.50_Razorback

[82nd airborne]

Thanks Dan!