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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Boss setting inquiry, 150s in a .300 win mag model 70 supergrade. Anyone done this?
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<blockquote data-quote="thwatson2" data-source="post: 2001072" data-attributes="member: 56839"><p>Unfortunately sounds like most of us have the brownings. I have 6 brownings with BOSS. 5 of them shoot like a custom rifle with brownings "sweet spot" numbers. But the one in 7 mag isn't even close. Long story short, I started that rifle at 0.0 then started working up 1 full turn with 3 shot groups. Luckily at 4 I was getting a pretty decent group so I started increments back and up in 10ths and found 3.8 was perfect. I also was told,by browning years ago, that once you get your primary number, that for higher velocity rounds turn upward and for lower velocity rounds turn backwards. So far, that worked for me. regret to tell you but you are gonna be at the bench a little bit to figure it out. I also would note that the 300wm really shines at 180 and up so maybe try to sell the 150bullets to someone with a 308 or 30-06?</p></blockquote><p></p>
[QUOTE="thwatson2, post: 2001072, member: 56839"] Unfortunately sounds like most of us have the brownings. I have 6 brownings with BOSS. 5 of them shoot like a custom rifle with brownings “sweet spot” numbers. But the one in 7 mag isn’t even close. Long story short, I started that rifle at 0.0 then started working up 1 full turn with 3 shot groups. Luckily at 4 I was getting a pretty decent group so I started increments back and up in 10ths and found 3.8 was perfect. I also was told,by browning years ago, that once you get your primary number, that for higher velocity rounds turn upward and for lower velocity rounds turn backwards. So far, that worked for me. regret to tell you but you are gonna be at the bench a little bit to figure it out. I also would note that the 300wm really shines at 180 and up so maybe try to sell the 150bullets to someone with a 308 or 30-06? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Boss setting inquiry, 150s in a .300 win mag model 70 supergrade. Anyone done this?
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