I recently got a group of Lyman Shell sizers. There were 20 in the group.
Most are marked for what they are for. Some on the side, some on the end.
There are two that are 6.5 mm. On both the 6.5 is stamped into the end. On one it looks to be hand written on with some sort of scriber Special. Both are in boxes with 6.5 MM stamped in the white spot. The one the Special die is in also has Italian hand written on the box.
Some put white stickers on all the boxes and wrote on them what they are. On the Special's box the sticker says 6.5 Italian. The other says 6.5 Mauxxxx Can't really read it.
On measuring the openings on the dies The 6.5 MM Special had a large hole of about .451 or .452 Hard to get the tips of the caliper to hold in the very edge of hole to get the measurement. The small hole was .274. The closest case I have to fit these dies are 30-30 cases. I ran one into each die to come up with a measurement for where the shoulder meets the neck. On this case I got about 1.775. These measurements were a bit hard to get too, so not exactly precise.
On the 6.5 mm die, I got a large hole of about .451 or .452. same as the other. The small hole was .283, The shoulder was about 1.810.
With searching through my sources of info this leads me to believe the one marked 6.5 MM Special is for the 6.5 mm Italian Carcano.
The one with just the 6.5 mm has a longer body. This leads me to belive this one is for the 6.5x54 Mannlicher-Schoenauer. This had the sticker I can't read. I
I'll change that one to read 6.5x54 M&S.
My 30-30 case are not large enough to get the shoulders of the cartridge formed by running them into these dies. I don't think I could run a 308 case into them. Afraid I might get them stuck.
I bought this group to add Shell Sizers to the 310 and Tru Line JR sets I have. The others I plan to list on here in the want to sell area.
Leo