Nosler Revises ABLR BC's

[Tlr155]

Elk WY, MT, I'd, co
Mule deer Mt WY, SD, I'D, NE, OR
whitetails NY, PA, MN, MI, MA
we own a, small ranch here in MT, my Inlaws, own land (2,200 acres) in CO, (which will be passed onto my wife and I one day)
I have family in NY(Der hunting actually sucks) and PA the other states, we have friends we hunt with ID was, an otc the others were invites from friends

 

[SilverbulletMAG]

You are a very lucky man Tlr155...but you already know that.

 

[the444shooter]

You are a very lucky man Tlr155...but you already know that.

amen to that!

 

[Tlr155]

We're back in NY now for thanksgiving and a waterfowl hunt (greater snow goose) with family, but this trip is special because when we leave to go back to Montana
My Strata stainless 280 AI Will be staying with my nephew, ( he does, not yet know it will be given to him) he loves the rifle, Can hit anything he sets the cross hairs on out to 400 yrds with it (which in most parts of ny is, a long shot)
Time to plan next year's trips,,

 

[elkaholic]

Elk WY, MT, I'd, co
Mule deer Mt WY, SD, I'D, NE, OR
whitetails NY, PA, MN, MI, MA
we own a, small ranch here in MT, my Inlaws, own land (2,200 acres) in CO, (which will be passed onto my wife and I one day)
I have family in NY(Der hunting actually sucks) and PA the other states, we have friends we hunt with ID was, an otc the others were invites from friends

Do you need a friend!

 

[WildRose]

Chronographs have been around for quite some time. While some equations are involved it isn't quantum physics to shoot a string over a chronograph and get an average velocity (multiple chronographs for verifying your chronographs accuracy if you are publishing data for marketing) then shooting that same load at the same range (same barometric pressure, etc.) at various ranges and verifying bullet drop. From there it is simple algebra plug numbers into equations to figure the bc. It is even simpler to verify a published bc by running your velocity and published bc through the equation and getting bullet drop at various ranges and then shooting at those ranges and seeing if your actual drops coincide with the calculated ones.

Basically these equations were commonly known to shooters, much less production designers and marketers since the time chronographs were available. . . which has been more than "the last few years" they've been around longer than the internet has. So there is really no excuse for a systematic inflation of BCs across the board. If one caliber and weight of bullet had the wrong BC published I could buy a simple "error", typo basically, because an actual computing error should have been easily identified in testing. But to do it to the whole line of bullets? That was intentional false advertising. Or a complete lack of testing, which is inexcusable in a bullet being specifically marketed for long range.

Going off of muzzle velocity alone is where a lot of problems come from.

It gets very expensive to set things up to measure velocity at multiple points down range for several hundred yards or more.

The real, measured drop in velocity at each point downrange figured int the equations is where we go from predicted values based on MV alone to actual measured BC's.