Resizing already primed brass?

[daved20319]

Don't know just how it happened, but I have some brass that I primed that won't fit my case gauge. Either I missed resizing it somehow, or my sizing die was set wrong. So how do I resize it without decapping or contaminating live primers? This is rifle brass, so carbide isn't an option. Thanks!

Dave

Read More

 

[michaeldw]

Pull the decapping pin out of you die and size as you normally would

 

[snarlingdog]

Honestly I'd clean out your primer tray and do what you normally do but reuse the primers. What do you use for lube?

 

[Dirt Sample]

I've done it many times. I either just run it through the die again, taking out the decapping pin, or I just catch the primer when removed, and reinstall after resizing.

 

[BAJ475]

As stated above, you will have to remove the primer pin from the stem but will still need the expander ball to bring the case mouth back to the correct size.

 

[P7M13]

When it's less than a dozen, I don't bother with trying to salvage the primer.

 

[JRuby]

If you try to resize a primed case please ensure you use plenty of lube. A stuck primed case with a live primer is a whole new cup of worms. Most stuck case removers require drilling the primer pocket out and doing that on a live primer is not necessarily the safest.

 

[DizzyJ]

As mentioned, remove the decapping pin and resize. Lube well but try not to get it into the inside of the case if at all possible.

 

[daved20319]

No decapping pin or expander ball in my resizing die, I decap as a separate step, and expand with a mandrel. I lube with Hornady One Shot spray, my concern is using it on primed cases and possibly contaminating the primers. I also give my cases a quick clean in corn cob after sizing and trimming to remove the lube, seems like a bad idea with live primers. I guess I'll have to break out my old RCBS lube pad, then wipe them down by hand. Thanks.

Dave

 

[Helocat]

And like good little reloaders, we all ware our eye pro anyway..... Riiiiiiight? If not now is a good time to start.

I too would just run 'em as is.

 

[DizzyJ]

No decapping pin or expander ball in my resizing die, I decap as a separate step, and expand with a mandrel. I lube with Hornady One Shot spray, my concern is using it on primed cases and possibly contaminating the primers. I also give my cases a quick clean in corn cob after sizing and trimming to remove the lube, seems like a bad idea with live primers. I guess I'll have to break out my old RCBS lube pad, then wipe them down by hand. Thanks.

Dave

I wouldn't worry about contamination with one shot as long as you're not spraying it directly down the case mouth.

Just wipe off by hand using some ISO alcohol.