I called Cutting edge bullets yesterday and ordered a run of aluminum bullets for my 600 Overkill. Another fellow forum member had called the day before and ordered a run also. Anyone who wants them could get in on them now as we have bought the minimum production so they would sell boxes of 20 to you if you wanted to try them and call before they are made. Solids would also be available in the same profile as I believe it is the same bullet just without the cavity.

Matthew

What keeps the aluminum from being abrasive? roger

I don't know. I have put 600+ through my rifle and can see no difference between it and its sister that only shoots brass monometals and standard cup and core.

Matthew

The aluminum won't be abrasive until it coverts to aluminum oxide. I am sure they are shooting them way before that occurs.

I had to take a look at my calendar to make sure it was not April fools day because this takes the whole notion of non lethality to another level !

The big question is why ? What on earth would one do with a "non lethal" and inaccurate hunting bullet ?

quote:

Originally posted by dpcd:
The aluminum won't be abrasive until it coverts to aluminum oxide. I am sure they are shooting them way before that occurs.

If you scratch aluminum the scratch in a matter of secounds oxidizes.

I didn't read the part about them being inaccurate.
As for Aluminum oxide being abrasive, while it is one of the most abrasive substances known, it takes far longer and more harsh conditions for it to form crystals big enough to be abrasive to steel, than these bullets are subject to. Hence the observation by the OP that his barrel is not worn. Gas cut by the large volume of slow powders, yes.

Alf. I have much respect for you, but what would make these non lethal and innaccurate? Not a DG bullet but hogs and deer?

quote:

Originally posted by ALF:
I had to take a look at my calendar to make sure it was not April fools day because this takes the whole notion of non lethality to another level !

The big question is why ? What on earth would one do with a "non lethal" and inaccurate hunting bullet ?

The answer is SD or lack thereof.

In practical applied terminal ballistics we have two commonly applied methods of lowering lethality of projectiles. Both involve the two factors that make up SD

We can increase the representative projected area of the projectile ( as done with bean bags and other crowd control munitions) or one can make the projectile very light by choosing a low density low mass projectile. These are commonly employed a defensive or offensive munitions where distance of potential target is relatively close and one would like to minimize accidental or coincidental lethal wounding of innocent bystanders.

So inherently a low SD projectile can have very hight initial velocities but they lose this very quickly over distance. Examples of this are irregular bomb fragments of low SD. They start off a extremely high velocity, much higher we can ever obtain from a rifle but may loose so much velocity that lethality beyond 15 m drops off sharply.

Low SD projectiles are far more prone to the upsetting forces that projectiles are subjected to in flight.

BC is SD dependent. BC = SD/i where i = form factor.

The bore bullet interface for aluminium is worth scrutiny. Though aluminium is ductile and malleable like lead its melting point is also quite low ( 660 deg C) Lead is half of that at about 325 deg C. Bullet bore interface interaction produces heat and the longer the barrel the higher the heat. We know that lead does melt at the interface and aluminium would do the same. Aluminium smears on the metal surface of the bore and fouling is rapid.
There is some concern as to the engraving by the barrel grooving and the obturating of bore.
gas jetting past the bullet is a major concern as this scours the bore at very high temperature.

Lastly we have this issue of aluminium oxide Al3O2, it is very thin on the surface, very hard and very abrasive.

Will U use a lye solution to clean the aluminum fouling? Maybe 3 or 4 alumminu bullets down a new barrel will lapp it.

and thank you Alf. Great explanation!!! Roger

I guess we shall see what they can do when they get used.

The term 'non-lethal' should always be " less than lethal " .We know that from many police shootings .
Maybe we need to use a jacket of some kind like the nylon coated lead bullets for handguns.

quote:

Originally posted by Matthewx:
I called Cutting edge bullets yesterday and ordered a run of aluminum bullets for my 600 Overkill. Another fellow forum member had called the day before and ordered a run also.

Matthew

After speaking with Nikki twice, I never got a return call for a quote. I was getting ready to ship 20ft of 3/4" 7075-T6 and then I saw your post. As raptors these should be hell on pigs under 100yds. Nikki did tell me they make TIPS for the .620 Raptors, but do not catalog them.......

Andy B

For those concerned about aluminum,

During a phone call with Rob Garnick, he dared me to wear out an Overkill barrel. He said it would be a challenge to be the 1st to wear out a 600 Overkill barrel.......Challenge accepted.

Andy B

Right; the NaySayers love to criticize anything new that they do not understand, and have not done themselves.
Have fun with them; it is a great idea, and as I said above, you ain't going to wear out any barrels from friction.

I would think if you got hit by a chili bean going 2000fps it would be lethal, Maybe not accurate but lethal all the same

quote:

Originally posted by ALF:
I had to take a look at my calendar to make sure it was not April fools day because this takes the whole notion of non lethality to another level !

The big question is why ? What on earth would one do with a "non lethal" and inaccurate hunting bullet ?