Accuracy tips for 300 Blackout brass...Lee collet die and shoulder set back...

In this video I introduce the idea of using the Lee collet die for the 300 Blackout in an unconventional way. I propose using the collet die after full length sizing as an additional step. I have found doing this particularly on home made, un-fired, brass improves accuracy by about 50% in my case. I also talk about adjusting shoulder set back once brass is fire formed to improve accuracy as well. Hope you like it.
Resources:
Link to 300blktalk.com http://www.300blktalk.com/forum/viewtopic.php?f=128&t=101096

Die set https://www.titanreloading.com/lee-precision-reloading-equipment/lee-rifle-reloading-dies/lee-collet-2-die-set/lee-300-aac-collet-dies

Hornady headspace bushing https://www.midwayusa.com/product/447574/hornady-cartridge-headspace-gauge-bushing-350-diameter

Comparator base https://www.midwayusa.com/product/709931/hornady-lock-n-load-bullet-comparator-body

Stand alone die from Lee. https://leeprecision.com/collet-neck-sizing-die-only-complete.html