Reamer Thoughts (moved from the General Reloading to here)

[USMCDOC]

Ok.. my current chamber was cut with a Wylde reamer then throated for the 90 VLD bullet.

My measurements to a fired case in the current chamber is

Base Dia: 0.3760 (Not the rim, but the base of the case body)
Shld Dia: 0.3585

And the Bottom of the case to the datum of the shoulder is 1.453

New Blue box Lapua 223 brass is

Bottom to the Datum: 1.451
Base Dia: 0.374
Shld Dia: 0.350


According to this link

http://ar15barrels.com/data/223-556.pdf

The Wylde chamber should be approx

Base Dia: 0.3810(i am not sure, but i have a feeling here that they measured the rim, instead of the case body)
Shld Dia: 0.3572
Bottom to Shoulder: 1.4316 (i checked, looks like the datum measuring point is about .020+)

And using the drawing posted on this page of the 223 ISSF reamer specs.
http://forum.accurateshooter.com/threads/223-90vld-dummy-rounds.3903312/



Base Dia: 0.377
Shld Dia: 0.3568
Bottom to Shoulder: 1.432

So my thinking is, would it better to forge forward with i have been doing, or change up and run with the ISSF reamer? i will make a call to Dave on monday for a reamer..


Now dies are set to the do the following:

Base Dia: 0.3750
Shld Dia : 0.3555
Bottom to datum: 1.452

With either reamer, in a close to perfect world, i shouldn't have to adjust my body die at all should i?

 

[jpretle]

Your numbers on the shoulder diameter of your fired case must be incorrect/

 

[Eddie Harren]

Your numbers on the shoulder diameter of your fired case must be incorrect/

Either a typo or really difficult extraction!

 

[TAJ45]

Either a typo or really difficult extraction!

That kinda snagged my eye too!!! Hope this doesn't derail his main question. I'd offer an opinion but not enough creds to be, well, credible.....

 

[USMCDOC]

Your numbers on the shoulder diameter of your fired case must be incorrect/

Either a typo or really difficult extraction!

That kinda snagged my eye too!!! Hope this doesn't derail his main question. I'd offer an opinion but not enough creds to be, well, credible.....

Yes.. you all are correct.. it was a typo.. i left the "3" out of the number.. it is correct now. Thank you for pointing that out!