When all I had was percussion arms I tried Triple 7 and had no problems with it. These were sidelock designs, using CCI #11 and #11 magnum caps.
One of my "modern" rifles is an old Savage Model 23 in 22 Hornet. Interesting bolt gun, receiver and barrel are all one piece of steel. Loading with standard Remington 7 1/2 small rifle primers and by the book loads I was getting rather mediocre accuracy. A friend with long experience with the Hornet suggested changing to Rem 6 1/2 primers. He stated the 7 1/2 was too powerful for the small capacity case, leading to fracturing of powder granules and the primer kicking the bullet forward before powder was properly ignited. Tried it- wow, what an improvement!
I wonder if a similar phenomenon occurs when using 209 shotgun primers with Triple 7?
One of my "modern" rifles is an old Savage Model 23 in 22 Hornet. Interesting bolt gun, receiver and barrel are all one piece of steel. Loading with standard Remington 7 1/2 small rifle primers and by the book loads I was getting rather mediocre accuracy. A friend with long experience with the Hornet suggested changing to Rem 6 1/2 primers. He stated the 7 1/2 was too powerful for the small capacity case, leading to fracturing of powder granules and the primer kicking the bullet forward before powder was properly ignited. Tried it- wow, what an improvement!
I wonder if a similar phenomenon occurs when using 209 shotgun primers with Triple 7?