[kfen]

Has anyone Chronographed new ammo? I tested some Win AA 1145 and I came up with 1200,1220,1190,1230. None near 1145. Remington Gun clubs 1145 tested at 1160,1130,1160. Interested in why the Win AA tested at or above 1200. I am trying to load up some ammo the same as AA.

 

[Jawhawker]

The type chrono you used is different from the industry type. Yours clocks leading pellets, theirs the mass. While no absolutes are involved, typically 40-60 ft per second will be noticed.

 

[BigM-Perazzi]

kfen, than load to match what your AA's read on YOUR chrono...

 

[hmb]

How many pellets have to travel above the speed limit in order to violate ATA rules. HMB

 

[FlaLagarto]

Remember boys and girls.. SPEED KILLS !!

 

[timb99]

Also, SAAMI had tolerances on speed. 90 fps +/- speed advertised on the box.

 

[jhunts]

870,

I think that is exactly what saami guide says.

Nominal Mean Velocity +-90fps. 3dram = 1200 fps NMV +-90fps.

A 1200FPS (3 DRAM LOAD) can have any or all shells of 1200+-90fps. Though with controls set in place in reality it is closer to actually 1200 +-35fps. Remember it has to be based on the components used for a tested 1200fps load. A 1200fps load from any manufacture has different components or different amounts of the components in any faster of slower NMV load.

A 1250fps NMV load is not 3dram equivalent. Even if Winchester puts 3dr eq on the box. It is not.


Shoot well.

John