Heresy Designs Vendetta chassis + BX-25 mag wobble causing FTEs/out-of-battery jams? (TandemKross bolt)
Hey everyone, looking for a little advice on my 10/22 setup.
I installed my 10/22 standard Ruger receiver into a Heresy Designs Vendetta chassis today with an aftermarket TandemKross KrossFire bolt. Everything is torqued to spec including takedown screw at 15 in-lbs, but when running a Ruger BX-25 mag, I’m getting constant failures to extract and out-of-battery hangs where the bolt stops about 95% forward.
I tried some troubleshooting and I think the BX-25 has some vertical play/droop/?tilt in the chassis magwell. If I pull down on the mag, that seems to cause failures to extract (case drops off the bolt face and stays in the chamber) and tries to double-feed the next round behind it but I haven't figured out exactly what position in which the problem truly occurs if that makes sense. But if I push up/forward on the bottom of the mag while firing/cycling, it feeds, fires, and extracts much better/nearly fine. Flush 10-round rotary mags also don't seem to have the issue.
Is the go-to fix here just an upgraded extra-power mag plunger spring (like the KIDD or TK one) to lock the BX-25 tight against the receiver, or has anyone running the Vendetta chassis or similar found another trick? Thanks