7.65mm Truncated bullet

[Sieger]

RAY1946:

I have just what you have been looking for.

From the Deutsche Waffen und Munitionsfabriken 1904 Munitions-Katalog actual drawings of all of the original 7.65 bullets.

There are four rendered. One round nose, one round nose with a flat point, one round nose flat point with hollow point and one truncated cone (the one you are looking for).

All have a diameter of 7.83mm or .308 inches. Originals I have actually measured were all .309 inches.

Strangely, the original spec. Luger barrels are right at .311 inches (as are my 7.65 Mauser rifles).

I have been trying to get some folks interested in a custom mould cut to the original truncated cone design, but have not followed up.

Would you be interested?

Please PM me for a copy of the original designs.

Thanks!!


Sieger

[RAY1946]

I would be very interested. I have been checking out the Lee site and they seem to be pretty reasonable as far as producing a custom as long as it falls within certain parameters.

The bullet I am thinking of designing would definately have a gas-check shank. Once the current crop of crimp-on gas-checks are seated on a bullet, the gas-check becomes the base band and is about .085 high.

Thus, the overall length could be designed long enough to achieve the target weight(90-95grs.), while protecting the base from the flame temperature of a 25,000-30,000 load. Also incorporated in the design would be a flat point of about 4mm(.157) in diameter and a high diameter radius from the top driving band to the top of the bullet........................RayT

[G.T.]

Hi Sieger & Ray.... count me in... I will split whatever cost amoung however many to get a custom mold like that... should be two of four cavity though... and have a small radius on the trunc top flat edge(just like the jcketed bullet)... like the RCBS for the 9mm TC mold, I'm in boys! til....lat'r....GT

[Sieger]

Originally Posted by G.T.

Hi Sieger & Ray.... count me in... I will split whatever cost amoung however many to get a custom mold like that... should be two of four cavity though... and have a small radius on the trunc top flat edge(just like the jcketed bullet)... like the RCBS for the 9mm TC mold, I'm in boys! til....lat'r....GT

Hi GT:

What about that Recoil Spring project?

Yes, the Lead RCBS 124 grain TC bullet is a very accurate bullet. This is my most accurate in the 9mm (properly handloaded, six touching on a regular basis at 25 yards).

Frankly, just downsizing that bullet design to 7.65 may be a good place to start a bullet design project. indeed!!! Remember, its the length of the bullet that really counts, not the weight (within reason).

Sieger

[Sieger]

Originally Posted by RAY1946

I would be very interested. I have been checking out the Lee site and they seem to be pretty reasonable as far as producing a custom as long as it falls within certain parameters.

The bullet I am thinking of designing would definately have a gas-check shank. Once the current crop of crimp-on gas-checks are seated on a bullet, the gas-check becomes the base band and is about .085 high.

Thus, the overall length could be designed long enough to achieve the target weight(90-95grs.), while protecting the base from the flame temperature of a 25,000-30,000 load. Also incorporated in the design would be a flat point of about 4mm(.157) in diameter and a high diameter radius from the top driving band to the top of the bullet........................RayT

Hi:

That sounds interesting.

By the way, Lee already has a TC bullet that might work well
in the Luger 7.65 as is. I think they sell it as a .32 cal. It is of tumble lube type somewhere around the correct weight.

Personally, I feel that a gas check on these bullets would be an over kill. I have shot a gazillion 9mm lead flat base non gas-check bullets through my two Lugers and have never had a leading problem. Handloaded properly, these have proven more accurate than my most accurate FMJ bullets, and frankly, that is saying quite a lot (six touching at 25 yards on a reqular basis).

Your thoughts?

Sieger