RIO 410 2-1/2" Skeet loads: Primers backing out

[mehavey]

New (but old/pristine 1979 vintage) REM 1100LW Skeet-T
RIO 410 2-1/2" Skeet loads.
Primers regularly backing out to the point of dropping into the action. Tried two different manufacturing Lots. Same result.
Spent primers were so loose that I could push them in or pull them out w/ my fingers.

AA and inexpensive Estate shells totally normal.

Anyone else have similar experience here ?

 

[FITASC]

'Are you using metric primers?
If you are using Win 209s or similar in a metric hull, the primers are not properly sized for the hull

 

[mehavey]

These are new/commercial RIO cartridges.
(no reloads or different primers involved)

 

[IZZY]

I would cease using them and contact the MFG. immediately...

 

[The Happy kaboomer]

Primer sizes

.240 Remingon
.241 CCI/Federal
.242 Winchester/Wolf
.243 Cheddite/Fiochi
.244 RiIO

Factory shells. Contact mfr.

 

[GE-Minigun]

What fitasc said.

 

[mehavey]

Again ... these were RIO factory/commercial
Not reloads.