Messed up sizing

[ARShooter91]

Resized 50-6arc casing without measuring my shoulder. Set back is .0014 instead of the normal .004-.005 I do with an AR. These have any use other than plinkers? Just started load development for it. Going to do a seating depth test on some 95g Berger's next.

Edit: .014 not .0014.

 

[Im2bent]

If they chamber should be fine.

 

[diggler1833]

I'm assuming you've already loaded the ammo? Or did you mean .014" and not .0014?

.0014 (I need to get your calipers) shouldn't be too much of an issue.

If the brass isn't loaded yet, I don't see any problem (assuming .0014) of sizing them again to get to your desired .004 - .005 bump.

 

[ARShooter91]

14 thousands lol. One too many zeros!

 

[918v]

I'm assuming you've already loaded the ammo? Or did you mean .014" and not .0014?

.0014 (I need to get your calipers) shouldn't be too much of an issue.

If the brass isn't loaded yet, I don't see any problem (assuming .0014) of sizing them again to get to your desired .004 - .005 bump.

How would you size them to get a .005” shoulder bump when the shoulder is already .014” short?

 

[Im2bent]

How would you size them to get a .005” shoulder bump when the shoulder is already .014” short?

He originally stated .0014 bump.

 

[diggler1833]

How would you size them to get a .005” shoulder bump when the shoulder is already .014” short?

He stated .0014, it was a typo on his part. That's why I asked.

 

[FredHammer]

So you are way short. It will be like shooting factory brass again. You will be ok.

 

[ARShooter91]

Factory new Hornady is .01 short. I suppose I'll just load them with a mild charge and see how they shoot. Ring some steel and see how accurate the listed BC is on these 95s.

 

[ARShooter91]

So you are way short. It will be like shooting factory brass again. You will be ok.

Do you think it's worth trying different seating depths to find a length it favors? Worse case I do it again with properly sized brass.

 

[FredHammer]

Geezo that is tight. My 308 WIN brass stretches .011" to fired length. My 300 WM .017".
What is your jump?

 

[msgriff]

I use SAAMI max chamber length and subtract SAAMI min cartridge length (bolt/base to datum) to determine maximum delta for a specific chamber. For 6ARC, that would be 1.2001" - 1.183" = 0.0171", so take your actual chamber length and subtract 0.0171 for your min safe cartridge length.

 

[supercorndogs]

Fire them back out and reload them again. Keep an eye on that bunch, that ate up a couple reloads worth of case head thickness.