Pond James Pond
New member
If you know the diameter of your bullet, its weight and its velocity are there any methods of predicting, within reason, likely penetration from a SD point of view.
It is the age old issue of round choice and I have two options that I have simply because they are available and others are not: both 158gr, both manage about 800fps/250ftlb at the muzzle (adjusted to snub performance), both have a flat nose.
One is FMJ, the other SP.
I have touched on this issue in the past and got various responses mostly pointing to the flattest, widest meplat possible and so far these two rounds are it, aside from WC although those are pretty weak loads with 670fps and 150ftlb at the muzzle (also adjusted to snub performance).
I want to know if the SPs would yield any worthwhile expansion and if, in doing so, would it still retain any decent penetration.
I do not want to start a calibre war as it would serve , and I'd like to avoid multiple cartridge suggestions by just sticking to those mentioned above and the question below.
My one and only question is if there is a way of approximating, on paper, how a given round might perform in an SD situation given the parameters I have avaialble.
It is the age old issue of round choice and I have two options that I have simply because they are available and others are not: both 158gr, both manage about 800fps/250ftlb at the muzzle (adjusted to snub performance), both have a flat nose.
One is FMJ, the other SP.
I have touched on this issue in the past and got various responses mostly pointing to the flattest, widest meplat possible and so far these two rounds are it, aside from WC although those are pretty weak loads with 670fps and 150ftlb at the muzzle (also adjusted to snub performance).
I want to know if the SPs would yield any worthwhile expansion and if, in doing so, would it still retain any decent penetration.
I do not want to start a calibre war as it would serve , and I'd like to avoid multiple cartridge suggestions by just sticking to those mentioned above and the question below.
My one and only question is if there is a way of approximating, on paper, how a given round might perform in an SD situation given the parameters I have avaialble.