FL sizing, shiny ring around base

[emmagator]

I just purchased a new forster fl sizing die. I set it up per directions, turn die until touches case holder while press is at highest point, then tighten locking ring. When I size the brass it leaves a highly visible shiny ring around the base of my brass. I ran a paper clip inside the brass and feel no signs of thinning, some brass is only once fired. Is this normal or is there done adjustment I need to make? Thanks

 

[Joe King]

yep it's normal, it's just a rub mark from your die squeezing the case back down at that point. If you start seeing a really .......whiteish ring then your gonna want to get the paper clip back out

 

[emmagator]

yep it's normal, it's just a rub mark from your die squeezing the case back down at that point. If you start seeing a really .......whiteish ring then your gonna want to get the paper clip back out

Just seems really weird, because my old rcbs fl die never did this. Maybe I'll use a little more lube to see I'd that helps.

 

[4xforfun]

Not sure about the ring, but that is NOT how I would set up my dies!!!

 

[emmagator]

Not sure about the ring, but that is NOT how I would set up my dies!!!

Um ok...very helpful!

 

[Joe King]

I've seen it happen with a few rifles, they where all factory chambers though. Just as long as you get in the habit of feeling the web area for thinness you should be ok.

 

[sp6x6]

Pick up a comparator with shoulder sleeves to check fired brass, then set die for a 1-.0002set back.This way you will not be overworking the brass

 

[Gene]

Pick up a comparator with shoulder sleeves to check fired brass, then set die for a 1-.0002set back.This way you will not be overworking the brass

What the heck are "shoulder sleeves"? Who makes this tool?

The ring is of no consequence, its just a tight fit between chamber and the brass. Neck sizing may be useful. You might want to try a small base die.

 

[emmagator]

Well i just order the Hornady headspace gauge and the Hornady seating depth gauge. So i now i should be able to get dialed in. Thanks

 

[Joe King]

gun)

 

[4xforfun]

Um ok...very helpful!

See, it was hepfull...you are on your way to learning how to set up your dies for your chamber. You just killed two birds with one stone (or post)! Almost none of my dies are screwed alll the way down to the shell holder. BUT, some I had to mill off twenty five thou off of either the die or the shell holder to get propper sizing...every chamber is different.

Another tip.....along with measuring your brass head space..I take my fireing pin assy out of the bolt to help me find the correct head space. Without the FP assy, you bolt, when closed on an empty chamber, FALLS CLOSED. You should be able to push the bolt ahead on a sized brass and the bolt should fall about halfway closed by gravity alone....very light push to close it the rest of the way.

Your welcome.

 

[emmagator]

See, it was hepfull...you are on your way to learning how to set up your dies for your chamber. You just killed two birds with one stone (or post)! Almost none of my dies are screwed alll the way down to the shell holder. BUT, some I had to mill off twenty five thou off of either the die or the shell holder to get propper sizing...every chamber is different.

Another tip.....along with measuring your brass head space..I take my fireing pin assy out of the bolt to help me find the correct head space. Without the FP assy, you bolt, when closed on an empty chamber, FALLS CLOSED. You should be able to push the bolt ahead on a sized brass and the bolt should fall about halfway closed by gravity alone....very light push to close it the rest of the way.

Your welcome.

Thanks