They require the "2" setting as they are lighter loads than expected.
We ran about 20-30 of these loads through the S12 yesterday (78 degrees and slight breeze), both 00 and slugs. Had numerous feed/ejection issues when regular loads worked fine.
Gunco Member #10
The "original" Boltcutter Rivet Squeezers:
Project Pink - the Pink and Blue AK-74: