Ive got the older Optima and am getting FTF and hangfires w BH209 …. Never had this issue w my Encore ML ???
If your Optima is the original version, the breech plug is not compatible with BH 209. It needs two mods. First is to slightly enlarge the flash hole to .034 or .035 thousandths to allow more fire through. The second is to drill the front of the plug deeper so the fire has a shorter distance to travel to reach the fire. The second mod is easy, but the first requires a very tiny drill bit and a lot of precision. Bigblock 455 here in this forum has done some if you need more info.
If you have a current generation Optima, you just need to invest in a new breech plug that is BH 209 compatible.
