What is your experience with the RCBS 7.62x54r neck sizing die?

[BJung]

My fireformed cases sounds like yours. The chamber is larger and the dies tend to swage the body - and for me - the shoulders. The fireformed shoulders look like the round Weatherby shoulders. Does anyone know if my FL sizer die can be reamed to my chamber dimensions and who can do this for a reasonable price?

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[BJung]

I just discovered that Lee makes a 7.62x54r collet die. This will be my neck option if the RCBS neck sizing die doesn't lead to a concentric reloaded cartridge.