Gene Beggs
Active member
Guys, you haven't heard much from me lately for several reasons; spring break, kids and grandkids, Easter holiday etc., but the main reason I haven't said much is because I haven't had anything new to share with you. Nothing that is until now, and buddy, did I ever discover something exciting at the tunnel tonight!
Satisfied that the 220 is as perfect as it can be, I have been focusing on the 6mm Beggs cartridge during the past few days. The rifle is a sporter built on a Stiller Cobra drop port. The barrel is a Bartlein chambered in 6mm Beggs with a .269 neck and of course, one of my tuners installed.
The rifle tuned easily and predictably and acted as if it wanted to shoot. If it showed one bullet hole of verticle, a quarter turn of the tuner would eliminate it but when you tuned all the verticle out, you always had about a bullet hole of horizontal. It was just as repeatable as it could be; you could have a group with NO horizontal, but with a bullet hole of verticle or you could have a group with NO verticle and a bullet hole of horozontal. At one time, I would have considered such a barrel a prime candidate for reindexing but I discovered something tonight with my tuner that eliminates the need for that.
Tonight, I expected to be able to tune the horizontal out of the rifle with neck tension and seating depth as I had always done, but in spite of my best efforts, the rifle stubbornly refused to cooperate. Again,, it would give me either a perfectly verticle group or a perfectly horizontal group but not both at the same time. I remembered something that Bryan Armatys experienced recently with an identicle setup and thought, hmmmmmm, you don't suppose?
It is well understood that barrels vibrate in the horizontal plane as well as verticle and the horizontal amplitude is usually about one third that of the verticle. Knowing that my tuner has a one revolution range in the verticle plane, I thought, "Maybe the horizontal could be tuned out by going out one revolution and retuning the verticle in that window?" VOILA! It worked!! And this is almost exactly what Bryan Armatys experienced the other day with his rifle except he had been tuning with the tuner out toward the midddle of the threads and when he turned it in all the way to the shoulder and backed it off one revolution, the rifle started putting them in one hole! This is one of the most exciting discoveries I have made with these tuners. Now I know that horizontal as well as verticle can be tuned out with the tuner. Who would have believed it? Yep,, lots of exciting things are happening. Stay tuned. (Pun intended)
Later,
Gene Beggs
Satisfied that the 220 is as perfect as it can be, I have been focusing on the 6mm Beggs cartridge during the past few days. The rifle is a sporter built on a Stiller Cobra drop port. The barrel is a Bartlein chambered in 6mm Beggs with a .269 neck and of course, one of my tuners installed.
The rifle tuned easily and predictably and acted as if it wanted to shoot. If it showed one bullet hole of verticle, a quarter turn of the tuner would eliminate it but when you tuned all the verticle out, you always had about a bullet hole of horizontal. It was just as repeatable as it could be; you could have a group with NO horizontal, but with a bullet hole of verticle or you could have a group with NO verticle and a bullet hole of horozontal. At one time, I would have considered such a barrel a prime candidate for reindexing but I discovered something tonight with my tuner that eliminates the need for that.
Tonight, I expected to be able to tune the horizontal out of the rifle with neck tension and seating depth as I had always done, but in spite of my best efforts, the rifle stubbornly refused to cooperate. Again,, it would give me either a perfectly verticle group or a perfectly horizontal group but not both at the same time. I remembered something that Bryan Armatys experienced recently with an identicle setup and thought, hmmmmmm, you don't suppose?
It is well understood that barrels vibrate in the horizontal plane as well as verticle and the horizontal amplitude is usually about one third that of the verticle. Knowing that my tuner has a one revolution range in the verticle plane, I thought, "Maybe the horizontal could be tuned out by going out one revolution and retuning the verticle in that window?" VOILA! It worked!! And this is almost exactly what Bryan Armatys experienced the other day with his rifle except he had been tuning with the tuner out toward the midddle of the threads and when he turned it in all the way to the shoulder and backed it off one revolution, the rifle started putting them in one hole! This is one of the most exciting discoveries I have made with these tuners. Now I know that horizontal as well as verticle can be tuned out with the tuner. Who would have believed it? Yep,, lots of exciting things are happening. Stay tuned. (Pun intended)
Later,
Gene Beggs
