Alternatively, with regards to the correct breech plug you’re working with, you may run into ignition problems with these 209 primers if you utilize them along side Blackhorn 209. This appears to operate as advertised. It's worked flawlessly on my CMP “support” grade rifle. Replaces the original particularly, and you https://alexiscytnf.activablog.com/16001987/209-primers-in-stock-now-2021-options