I have a Remington 870 compact 20 gauge that I am customizing and is a real shooter with TSS #9s and a Sumtoy .562 choke. I am going to have it cerakoted after season. However, being the gun nut I am, I enjoy tinkering and customizing stuff and would like another 20 gauge as a backup (or just to have). I would like some information on feeding issues - if any, in a semi-auto with these roll crimped shells. I like the Stoeger m3020 but would like a barrel shorter than 26" Also, are there any 20 gauge pumps that come drilled and tapped from the factory other than Mossberg? I had mine tapped at a local shop and installed a Venom.