Pressure

[C.O.B.]

Does anyone know what dram equivalent of powder your using? The Clever shells are 2 Dram Eq. How does that translate into grains?

[OH Osthaus]

Originally Posted by Rich Anderson

Does anyone know what dram equivalent of powder your using? The Clever shells are 2 Dram Eq. How does that translate into grains?

since the archaic "drams equivalent" is just an approximation of the power of that load compared to black powder

2 drams equivalent is equal to the power generated by 55 grains of BP according to the chart i have

do any of the reloading recipes give that?

[StubTwist]

Rich,

The best and smartest thing to do is to send 5 shells to Precision or Arburst. Precision will get you results in a week once they receive it. This way you know for certain what the PSI and velocities are.

I couldn't find anything what the dram equivalent of a 2 DR 3/4 oz twenty gauge load but I came across this from the Remington website. Note the warning when trying to guess powder grains in relation to dram equivalents.

Dram equivalents were originally developed in the early 20th century to allow sportsmen an easy method of comparing the "new" smokeless powder loads to the then more familiar black powder loads. In effect, a shotshell with a 2-1/2 dram equivalent rating would be equal in velocity to a shell loaded with 2-1/2 drams of black powder--making the assumption that both shells contain the same amount of shot. Overall, the most important thing to remember is that the higher the dram equivalent, the higher the velocity for a given shot weight and, as a result, the more powerful the charge. There are no real dram equivalents for loads that didn't or couldn't exist in the black powder era. Key examples of these are steel loads and some of the heavy magnum turkey loads.

WARNING: Dram equivalents values have no relationship to the actual powder charge in a shell! These values should never be used in determining smokeless powder charge weights!