Short Round
Well-Known Member
- Joined
- Oct 15, 2009
- Messages
- 50
I have a great shooting Winchester Model 70 supergrade stainless synthetic. I have it at the original OEM setting for 180 grain bullets. With Nosler 180 grain BT it shoots 1/2" groups at 100 y.
I have 400 150 grain Hornady GMX bullets I would like to try out but there is no recommended starting point for that weight.
All I can do is look at the othe calibers like .308 and see how much apart the settings are.
My best guess is around 8.
Anyone have experience or a starting point based, possible start on formulas for barrel timing? I am guessing Browning/Winchester had some modeling methods before field tests.
Yes I know the only sure way is putting rounds down range but I sure would like to get a jump.
No worries in rushing to the opener, this is like the third rifle in the rotation, not counting woods walking guns like Dad's Marlin 336 or my 6.8 build.
I have 400 150 grain Hornady GMX bullets I would like to try out but there is no recommended starting point for that weight.
All I can do is look at the othe calibers like .308 and see how much apart the settings are.
My best guess is around 8.
Anyone have experience or a starting point based, possible start on formulas for barrel timing? I am guessing Browning/Winchester had some modeling methods before field tests.
Yes I know the only sure way is putting rounds down range but I sure would like to get a jump.
No worries in rushing to the opener, this is like the third rifle in the rotation, not counting woods walking guns like Dad's Marlin 336 or my 6.8 build.