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Messure the shoulder bump of a fls case(normal setting) and again with cam over
You’ll be Surprised how much extra bump you can get by having cam over
When I got my 6mmrem built the 1st rounds I...

Cam over does make a difference to how far the shoulder is bumped not sure how but it does
By a quite a few thousandths of an inch at times

Originally mine didn’t chamber ether
But I found that it was because I hadn’t bumped the shoulder enough
I took the die from its normal touching the shell holder setting to 1/2 turn in so there’s...

I have ended up with a few marks from sizeing probably just my die
Fire forming would just get rid of any little in perfections
In the case

rupert not sure if 5.56x45 nato brass is thicker
Might be worth a look?

rupert 0.249” for a reformed hornady 223 case
Pmc factory 222 brass 0.429 also
Both messured 0.241 unloaded also

Will messure a couple today for you

Its a small change of powder then the case is Topped up with cream of weat then a small wad of cotton to hold it all in
So no you can even just point it at the ground
Ive never actually done it...

Lol just saves wasting projeiles for fireforming
Just put them in and pull the trigger it still sounds like a gun going off so not in the center of town but there is no projectile so pretty safe ...

Bit of a waste of time as 222 brass is easy obtainable but I never researched it
But thought id have a play as I have plenty of 223 brass with no rifle
Flying completely by the seat of my pants...