[Equalizer_2]

I believe those cookie cutters were made by PMC for self defense ammo. Apparently something didn't work out as they were dropped and no one has tried it again that I know of.

As for the hollow base bullets, I believe part of the problem that Jack-O is thinking of is that the skirts could or possibly have been blown off when shooting rifle pressure loads. I seem to recall hearing of this happening with hollow base wadcutters in .38 Special if the loads were too hot. Yes, we are talking soft lead versus copper jacket material but we are also talking 18,000 psi versus 55,000 psi.

I like the idea of using the skirts/hollow base as it would make the bullet longer and possibly give it a better BC but then I am not an engineer so I really don't know if it would. I think the idea of using driving bands like the Barnes TSX on a lead core bullet would really add velocity too as it would reduce friction. I want to say that somewhere in Europe they made some loads like this.

[AKsarben]

If I was still at the macine shop at Boeing it might be tempting..LOL But on this eqipment at the winery, you're lucky to find a good adjustable wrench. Our drill press is horrible. It would take building a jig to hold it in a certain position and then a drill bushing to guide it in the same spot each and every time, with setting for depth. Off just a thousands to either side and you've got a wobbly bullet, that's for sure. I'm still out on the concern of the hollow base, as you had mentioned. Probably best to wait for your bullet to come along, Jack. I'm sure it won't be prone to leading in the barrel.

Does make you wonder about a solid outside jacket with nothing on the insdie except the gas check on the bottom. Once in flight it would loose the gas check and it would have very little resistance then from air. Might zip along quite nice.....and fast!

BTW, I just found of of the hollow bullets. I have 3 on hand. Marked PMC on the bottom and 38 spl +p so I was wrong on the .357 magnum part. Would you like a picture of the front of this bugger? Well, it's over at Defensive carry forums.. another I have frequented. Pic looks like this:
Original post about it here: http://www.defensivecarry.com/vbulle...ar-bullet.html

[smoffett]

Originally Posted by AKsarben

I was not talking about 2 bullets both 120 grain and pushing up and displacing the metal, but a 120gr flat bottom and a 130 grain flat bottom that had the center drilled out a ways to reduce the bullet down to 120 grains.

Okay, I get that. Sorry about taking this thread off track.

[AKsarben]

It's not off thread, Steve, it's kind of a moot quetion anyway. Unless someone actually made a hollow base bullet with longer "tail" of copper that allowed the bullet to have lenght and place for the powder to go AND did it with concentric machine AND it didn't cause pressure probems or other problems then it might be a nice idea.. right now, it's just a thought to throw out.. *S*

You could actually take a FMJ bullet, say 150 gr, cut the bottom off, heat and melt the lead out of it and pour back in lead to where it was 120 grains and it would be nose heavy. In theory being nose heavy shold be the most accurate for long distance stability. At 100 yards, it's hard to say. I don't know how much problems a hollow based bullet would cause, if any. Long and solid (copper) would give you grain and length, for good BC, but then you would have to crush powder to seat it deep enough to work in the magazine, etc. Long and solid (copper) but preciely drilled out in the bottom would give some room for the powder to go when seating the bullet. Just don't know if it would be a thing to do. Solid Barnes bullets set up on a lathe could conceivably be done one at a time and hold center pretty good. It would be intersting but don't know what pressures it could create.

[AKsarben]

Steve (Equalizer 2), I think that you are right about the extended pieces of copper down along the sides. It would give better length and BC, but the high pressure would really smash the bullet walls against the rifling and increase pressures. I knew there might be a catch in all this.

I have read somwhere that one of the problems with a bullet in flight is that fact that it is rear heavy and nose light. It is nose light because it tapers to cut wind and streamline the bullet in flight, but that works against it. The rear, being heavier, is wanting to be in front of the nose, but because of the spin, stays put. Once the bullet goes below sub sonic, it has more of a tendency to start to tumble, even though it is spinning. And I thiink it was because of the rear being heavier. Wish I remember where I read that.

[AKsarben]

Back on subject, I found 120 grain Barnes bullets at midwayUSA.com Link to see them here: http://www.midwayusa.com/viewProduct...tNumber=419989

From the looks of the solid brass bullet, it appaeart to be somewhat easy to load them in a milling vice jaws, base end up, and take off down to another "ring" or to your desired grain weight. A slight champfer on the base and it would load in the neck fine.

[BLACK LION]

Originally Posted by Jack-O

I'm designing them and have a bullet maker do them up to my specs for me.

I'm planning on being a forum sponsor here soon, but havent gotten to that point where I'm totally ready to start advertising the store and stuff. You can bet that the 6.8 will be a major function, and custom loads and bullets will be high on the list of priorities.

I need to be careful who I get these to. A non disclosure agreement will be needed at first, until we get thru the prototype stage and into production. I cant have people spreading a bunch of stuff around about a bullet that is under design still and not ready for production or release yet.

I've asked a couple of folks whom we all trust and respect to try these out, but I'd like to see another person participate too. we'll see how it shakes down.

My prayers have been answered... Finally a heavier projo that can feed from a mag reliably.

I am definately interested in the finished product.

[RugerIte]

Originally Posted by BLACK LION

My prayers have been answered... Finally a heavier projo that can feed from a mag reliably.

I am definately interested in the finished product.

And according to the ballistics program I see yet another reason to get that 20 inch 6.8 and no need for a 6.5 if every thing comes out ok!