exbio we have two sets....my pal has an RCBS set which includes form, trim,FL and seating. Thisis just like Dober's sent which (bless his little heart grin he loaned me to get started.

I have this set on order from RCBS also.I have not tried this but suspect this set up might have been required when cases were formed from 300H&H cases.

Just the other day, I got my FL and seat die from Redding which I have not used yet.

I hear through the grapevine that a prominent gunmaker who has recently built a Mashburn for a client, has just been running 300 Win Mag cases into the FL Mashburn die,and then fireforming.Again I intend to try this and see how it works.

This die set cost me $175 bucks.

OU76,who posted on here,did the fastest Mashburn conversion I know of....he got the RCBS dies. He had is rifle up and running in no time.

You should follow up with a call to Dober as he will fill you in on any little details. This is not a tough wildcat to form. wink

If I can do it,anyone can. grin

Last edited by BobinNH; 07/13/11.



The 280 Remington is overbore.

The 7 Rem Mag is over bore.