I have a problem resizing .223 brass on two presses: Hornady LNL and Rock Chucker. Dies used are RCBS X-Die and Hornady standard .223 sizing die. Mixed brass, fired in my mixed ARs. Cases are liberally lubed with Hornady One-Shot spray.
When resizing/decapping, half of my brass comes out just a little longer than my JP case gauge's (Wilde Chamber) long limit - probably a thousandth of an inch or so. The other half of the brass is right at the gauge maximum.
This condition exists for both dies on both presses. The case gauge is probably not faulty, as brand new brass and store-bought ammo drop in and measure right at the minimum mark on the gauge.
I can also confirm the case gauge is correct, by the fact that the out of spec, "long" cases jam my JP Wylde chambered rifle when loaded, causing a slight out of battery condition, and these live cartridges are very difficult to extract. In fact, they get stuck so tightly, that with the rifle pointing straight up, I have to bang the buttstock on the bench a couple of times to loosen the cartridge and eject it.
JP's tech support suggested that I set back the shoulder of the case just a little more, which makes sense to me.
The problem is that my sizing dies are already bottomed out and touching the shell holder on the Rock Chucker or the shell plate on the Hornady LNL. If I screw the sizing dies any lower, they will then start to damage and warp the shell plate and shell holder.
Any ideas on how I can set the shoulder back (aka bump the shoulder) a little more?
When resizing/decapping, half of my brass comes out just a little longer than my JP case gauge's (Wilde Chamber) long limit - probably a thousandth of an inch or so. The other half of the brass is right at the gauge maximum.
This condition exists for both dies on both presses. The case gauge is probably not faulty, as brand new brass and store-bought ammo drop in and measure right at the minimum mark on the gauge.
I can also confirm the case gauge is correct, by the fact that the out of spec, "long" cases jam my JP Wylde chambered rifle when loaded, causing a slight out of battery condition, and these live cartridges are very difficult to extract. In fact, they get stuck so tightly, that with the rifle pointing straight up, I have to bang the buttstock on the bench a couple of times to loosen the cartridge and eject it.
JP's tech support suggested that I set back the shoulder of the case just a little more, which makes sense to me.
The problem is that my sizing dies are already bottomed out and touching the shell holder on the Rock Chucker or the shell plate on the Hornady LNL. If I screw the sizing dies any lower, they will then start to damage and warp the shell plate and shell holder.
Any ideas on how I can set the shoulder back (aka bump the shoulder) a little more?