Loading the Short Ten by Pete Lester

[24 grams]

Does the MEC 600 Jr. do an adequate job of resizing a 10 guage?
At very low pressures does the brass even deform?

[J.B. Books]

Originally Posted by Steven Groh

Does the MEC 600 Jr. do an adequate job of resizing a 10 guage?
At very low pressures does the brass even deform?

A single stage MEC with the ring resizer will usually do the job of resizing 10 ga hulls without issue. It is easier to resize Federal hulls as they are made of brass whereas others are made of steel. I have a Lefever G grade 10 which is a great gun but it has tighter chambers than my other 10's and would be hard or impossible to close with some reloads. I bought a 10ga collet for my MEC Supersizer and that solved the problem with that gun.

Keep in mind the resizing ring on a MEC single stage is a wear item and every now and then it will need to be replaced. If you bought a used reloader you might want to change it.

[6pt-Sika]

Originally Posted by Steven Groh

Does the MEC 600 Jr. do an adequate job of resizing a 10 guage?
At very low pressures does the brass even deform?

I had a 600 JR 10 I bought new and it worked fine . But later I decided I wanted a Sizemaster with the collet resizer and that’s what I use now . I had a PW 375 many years ago set up for 10 gauge 3 1/2” that worked very nicely . But what I’d really like but don’t really need is a PW LS-1000 set up for 10 gauge 2 7/8” .