I bought a used Accurate 3 Cav. mould

[Ben]

30 cal., 180 gr. with a " D ring " on the nose.
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According to the seller :
D Ring mikes .302 " with ACWW's.
Drive bands mike .312" with ACWW's.
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The mould is in transit.
Might be a fun mould to work with in my many .30 cal. rifles ? ?

Ben

 

[Brad]

That is going to be interesting to watch. I often have wondered how well the nose band like that works.

 

[Ben]

My 1st one to have the " D Ring " .
I guess we'll see ? ?

 

[Ian]

I see that getting stripped off before the bullet gets out of the case neck. We'll see?

 

[Ben]

???????????

Ben

 

[Brad]

My understanding is that the d ring is simply there to center the nose on chambering.

I will be interested to see what the bullet does over a range of velocities. Ben, do you have the ability to recover bullets for the berm?

 

[fiver]

be interesting to see some measurements on the poured bullets.

 

[Ian]

I know the theory of operation, my question is same as Ben's, does it actually help?

 

[fiver]

maybe?
I think in something like a 2 groove or a 5 groove barrel it might prove pretty useful

 

[Ben]

My understanding is that the d ring is simply there to center the nose on chambering.

I will be interested to see what the bullet does over a range of velocities. Ben, do you have the ability to recover bullets for the berm?

No Brad, I don't .

Ben

 

[Brother_Love]

To show what a novice I am I did not know what a D ring was, never heard of it. I am sure in Ben's competent hands he will find a way to "ring" the accuracy out of it(pun intended). I look for "little bitty" groups.
Malcolm

 

[Ben]

Wow Malcolm, I really do like your faith !

Ben

 

[Brad]

Not faith, just reality. If anyone is going to make this work it is Ben.

How hard are you planning to push them Ben? Would be interesting to see how fast you can get them before accuracy falls off. I would expect at least 22-2400 fps

 

[fiver]

maybe.
it would help if that nose was tapered from behind the D ring to the front drive band.
the dimensions will mean a lot on this one.
if it's tapered up to say 302-304 then it would be pretty darn good in say on 03A3.
if it's more parallel at 300ish and relies on that ring to hard engrave I would say the 308 would be a better choice.
if Ben is looking at running this in his 30-30 301ish tapered to 299+ at the Ring nose shape would be good for impressing the lands.

that's actually a pretty darn good basic design. [rcbs like in many way's]
I don't understand why they would put the ring on it when it would have been easier to just add some overall dimension, or some taper, unless they were going to try and use it in a 30 and a 31 cal rifle.

 

[KHornet]

Interesting! Will be interested in results!

Paul

 

[Ben]

Not faith, just reality. If anyone is going to make this work it is Ben.

How hard are you planning to push them Ben? Would be interesting to see how fast you can get them before accuracy falls off. I would expect at least 22-2400 fps

Brad,

I will not be starting out at those speeds, however.....I just might end up the testing at those speeds.

Ben

 

[Ian]

I don't understand why they would put the ring on it when it would have been easier to just add some overall dimension, or some taper, unless they were going to try and use it in a 30 and a 31 cal rifle.

We've seen this before, like 50-60 years ago. If they'd done it like you just wrote with the taper they could shoot it in anything just the same, no need for shenanigans with an engraving ring to try and take up slack on loose rifles. I doubt it will do any good anyway once the primer is struck....if the bullet isn't held straight by the cartridge neck to begin with it isn't going to be held straight by a little band of lead scratched by the lands. If I sound overly-critical it's because there are some things that are....superfluous? Not that it won't work, just not necessary in the effort to make a more universally fitting, bore-riding bullet.

 

[quicksylver]

Well we'll all get a chance to find out when Ben sends us some to try....

Did the previous owner have any comments?

 

[RicinYakima]

Walt at NEI did the first one to use in a .302 bored barrel. It did great job of picking up center line of chambered cartridge. The "wasp waist " design was a flop, although brought back to life with every new generation of casters.

 

[Ian]

Like lots of things, eh Ric? I'm guilty of reinventing more than one wheel myself.