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

[ANeat]

any questions?

When can I borrow thw reamer

[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"

[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.