Question for Springfield M1A Reloaders...

[Walkalong]

Ditto to what SlamFire 1 and Reloader Fred said. Size your brass to your chamber and all will be well.

 

[Winger Ed.]

30Cal,,,

While we got ya on the phone,,,,,,,

You being a engineer & all:
I gotta ask you---

We all have have heard that a optomist sees a glass with some water in it,
as being 'half full'.

And-
We've all heard, a pessimist sees the same glass as being 'half empty'.

I have several relatives who are (various types of)engineers,
and have asked them this same question---- but never got a answer.

So,,, I'll ask you:

Does a Engineer view that same container- partially full of water- and say,
"Hmmmm,,,, Well,,,, No,, ahh,,, I think,,,,, Uh-huh,,,,,--- The glass is too big"?


.

 

[30Cal]

Does a Engineer view that same container- partially full of water- and say,
"Hmmmm,,,, Well,,,, No,, ahh,,, I think,,,,, Uh-huh,,,,,--- The glass is too big"?

precisely! It's also possible that it doesn't have enough features.



On case gages...

The RCBS Precision Case Mic has a vernier scale so that you can read actual numbers off, but I've found that two different gages will give two different numbers for the same case. So for using it to measure chamber headspace isn't a good idea (plus, that's not really its job). But it's fine for measuring the difference between a fired and resized case, which is what we need. It has an additional sleeve which will allow you to measure bullet ogive distance.

The Wilson gage (the drop-in type) just tells you go or no-go. You can throw a caliper on it to take an actual measurement, but it's difficult to get the same measurement twice. The .308Win gage I have won't swallow a fired case--the neck section is too small. Still, you can set your die till the cases drop into the short shoulder (indicated they're at the min spec) and that should assure at least adequate sizing.