50 BMG 6MM Wildcat

[varmint917v]

Is there any wildcats from the 50 BMG that shoot a 6mm or anything at all really?
I was thinking 105 VLD bullet probably 1:12 or 1:14 twist barrel. Velocity unknown but im guessing its over 4000 fps

[Reed1911]

 

[iiranger]

In his books, Mr. A., wrote of the mere .300 H&H case necked to .244. Yup, called the .244 H&H Mag. He said that with barrel steel available then, WW I, 20's, etc. barrel life might be 250 rounds. Many did not find an accurate load before the barrel was "worn out."

No doubt barrel steels are much improved. But burning 225 grains of powder...

Long ago, Rifleman said that with IMR powders, 4,000 is about all practical. Mr. Ackley mentioned 6,000 by Howe with a sintered iron bullet in a smooth bore long ago.

You want to try, have at it. Bring money, lots. Don't expect much barrel life, but glamour??? Your dime.

[Catfish]

I seen a barrel that was what he called a 50-.243. The 50 BMG necked down to .243, ie. 6mm. The guy that had it said it the worst idea he ever had. He was able to get velocities in the high 4,000 fps`s, but with the volume of powder he was burning it was no where close to the velocities he expected.

[billy_56081]

As in almost all firearms innovations we should look to the people that spend the most one armament. The military. The main gun on out Front line battle tanks is a smooth bore gun capable of velocities in the 5000 to 6000 fps range. It is done with a fin stabilized discarding sabot round. I would be interested if this has been tried in the commercial arms market yet and if so what are the results? Keep in mind these smootbore guns are also very accurate.

[Reed1911]

Look up 50BMG, 12.7x99mm and 20mm SLAP (saboted light armor piercing) rounds, yes it has been done in small arms calibers as well.

[DalesCarpentry]

Boy I have to tell you I am a speed demon!!!!!!! I love fast and flat. This sounds crazy to me. I would think the bullet would come apart at those kind of speeds. Hey I am all for it if you could keep the bullet together long enough to reach the target. Dale

[Kotimaki]

My 6mm A. I will reach 4000fps pretty easily. current varmint load is a 55g vmax at 4150  with 4895 , a raindrop will vaporize the bullet at that speed. Very impressive on gallon jugs though.

[Lone Star]

...but with the volume of powder he was burning it was no where close to the velocities he expected...

There is a physical limit to bullet velocity with commercial powders and current pressure levels.  A bullet can be accelerated no faster than the propellant gas which pushes it can travel - and with most current powders this is between 4000 and 4500 fps at the muzzle regardless of how much you burn.  To get higher velocities you have to exceed normal pressures or use different propellants.  No matter what some guy writes in a magazine or a book, you can't break the laws of physics.


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[DalesCarpentry]

...but with the volume of powder he was burning it was no where close to the velocities he expected...

There is a physical limit to bullet velocity with commercial powders and current pressure levels.  A bullet can be accelerated no faster than the propellant gas which pushes it can travel - and with most current powders this is between 4000 and 4500 fps at the muzzle regardless of how much you burn.  To get higher velocities you have to exceed normal pressures or use different propellants.  No matter what some guy writes in a magazine or a book, you can't break the laws of physics.


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Here you go. Dale  http://en.wikipedia.org/wiki/5mm/35_SMc