6BRA Alpha Brass question

[LVLAaron]

JGS had a Wheeler #1 in stock.... as well as the PRCW reamer I wanted. I'm off to buy some lottery tickets if you guys need me.

 

[dgeesaman]

The JGS Wheeler #1 is .4714/.4719 dia at the .200 line. The Manson is .4710/4.720 at the .200.

If it's true that the Alpha can't handle the diameter of the Wheeler pattern, then I don't seeing the Manson being better unless it's on the low side of the tolerance zone.

What neck dia is the default Wheeler #1?

 

[LVLAaron]

I don’t plan on using Alpha. Unless the regular BR brass works.

 

[LVLAaron]

The JGS Wheeler #1 is .4714/.4719 dia at the .200 line. The Manson is .4710/4.720 at the .200.

If it's true that the Alpha can't handle the diameter of the Wheeler pattern, then I don't seeing the Manson being better unless it's on the low side of the tolerance zone.

What neck dia is the default Wheeler #1?

.268 I think - don’t quote me.

 

[xr650rRider]

 

[LVLAaron]

"Uses standard BR headspace gauges" - Does that mean this design should close a bolt on a standard BR gauge? Or does it need to be 4 thou short or a BR GO?

 

[xr650rRider]

BR GO becomes BRA NOGO. BRA GO is .004" shorter than BR GO.

 

[sdbob]

Anyone have the reamer print for Wheeler #2

 

[Clancy]

"Uses standard BR headspace gauges" - Does that mean this design should close a bolt on a standard BR gauge? Or does it need to be 4 thou short or a BR GO?

.004 short

 

[LVLAaron]

Anyone have the reamer print for Wheeler #2

That one isn’t released.

 

[inkballedtarget]

Any new information on this? Is the conclusion Alpha Brass = Alpha Reamer?

 

[LVLAaron]

Any new information on this? Is the conclusion Alpha Brass = Alpha Reamer?

If you want to use Alpha BRA brass, that's my understanding.

I'm using the wheeler BRA reamer, and Alpha BR brass just fine.

 

[64Rambler]

Any new information on this? Is the conclusion Alpha Brass = Alpha Reamer?

Not sure what the specs of the Alpha reamer are, but I'm using a Criterion shouldered pre-fit with their 272 no turn, 0.120" FB reamer and use both Alpha and Lapua brass. I had some fit issues sizing with a Wilson 6BRA die, but switched to a Harrell's #2 and both size identically. There is ~0.2 gn difference in powder charge between the two, more needed in the Lapua, for the same velocity, but otherwise interchangeable.
EDIT: Now that I'm home, I can share the reamer print that I was given.

 

[JFrank]

I used this reamer for my dasher, also running alpha brass with zero problems.

 

[Fire Dog]

I’m using Alpha OCD. Reamer was Wheeler #1 which I was under impression was good for Alpha brass. And I’ve never used or shot Lapua brass so I don’t know any different other than the bolt lift on this disturbs the rifle. I know Alpha was less capacity than Lapua from my research.

Thought I did it right and sent brass to die maker to get custom die for it

Thanks

Let Peterson be your new friend…. Worked just great in my JGS reamer chamber.
Sold off all my Lapua now and use it exclusively…