Just a thought

what if we said "you know what, all measurements have their place"

Accepting that concept, here's my thoughts, of course, relative to caliber. What I mean by this is of course a 22 bullet, with an SD of .4 and a mv of 2400 is not going to penetrate as far as the same parameters in a 45 caliber bullet.

1: bullet construction (metal and shape, including caliber)
2: Sectional density, based off 1 above
3: intended purpose (BT vs Mono solids, for example)
4: Muzzle velocity
5: artifacts of MV (artifact of velocity means if vel is ZERO then the equation = zero)
5 a: MO
5 b: ME
5 c: TKO
5 d: whatever..

This should frame the answers to "what bullet penetrates more" allowing an apple to apples, rather than an oranges to BLUE comparision

your thoughts on the matter?

jeffe

Jeffe,

I thought about this for a while, but my head started hurting..............that happens when I try to think, so I'll have to fold

jeffe,

For all intents and purposes, I think it can be even more simple than that. This is the ultimate compromise. In no particular order:

1) bullet construction (material, shape, expansion design)
2) bullet weight
3) bullet x-sectional area
4) impact velocity


Cheers,
Canuck

I started writing a response to one of the penetration threads a few days ago, and then decided not to post it, since this always seems to be such an emotional issue, but I think this is the proper approach.

Canuck is on the right track. You should limit your variables to fundamental issues. For instance, things such as TKO are simply calculated from other more fundamental values such as velocity, mass etc.

The proper way to approach a modelling project is to decide on the independent variables which affect a situation then run parametric experiments which vary all these over the range of interest. The data is then correlated to determine the observed relationships. There is a lot of software available to both set up the experiment and analyze the data.

I think twist rate at the time of impact may also play a role in penetration.

Harris

I'm with Cunnuck but who really cares, a 375, 416, 404 and up all do the same thing, they kill whatever you shoot with them...

...the ultimate penetration compromise IS:
MARRIAGE!!!

As for the mathematics --- I'm not good with story problems.

When it comes to penetration, I am not willing to compromise.

quote:

Originally posted by 500grains:
When it comes to penetration, I am not willing to compromise.

50 BMG tungsten bore riders for Dan!!!

jeffe