I can say lots of pros to the 209 but I tried it and switched back after the gun not going off 2 consecutive years with great deer after tracking hours in the snow. It worked great at the range but up here in Northern Vermont in the snow and bitter cold both years it was a dud. Back to 777 pellets and shooting great. Last time I posted this I had everyone jumping on me about my primer must have been wrong or it was the breech plug. Everything was done by the book. Just my experience so take it for what it's worth. Fire arm was a tc encore pro with stainless barrel.