ORIGINAL: AQUATECH
First let me say I am not an engineer, nor am I
a metel fatique specialist. I do however understand
FORCE/MASS/PRESSURE. I also own a 45cal with
the dreaded barrell. So keep me posted, I'm
never too old to learn. I do understand that
their are some who need close scrunity when
handling any ML. Most of these folks have no
idea of what really happens when they load
prime & touch off their ML. Just my 2-cents
Hey Danny,
It is important to know that with 45 cal., your pressures are going to be higher for an equal charge of powder and equal weight of projectile than in a .50 cal. Roughly, not exactly mind you, 66% higher. There are good reasons for this. Because the bore area is smaller, the pressure must rise above .50 cal pressure in order to accelerate a bullet at the same rate of accelleration as it does in 50 cal. In a .50 cal, because of the greater bore area, the breach volume expands faster than it does in .45cal, meaning that, pressures will build longer and won't drop as fast from the peak as they do in a 50 cal. That said .45 cal, because of the smaller bore,
for the same pressure, will stress the barrel less, given the same wall thickness. I'll get into this in more detail in my next thread, its just a fancy way of saying that a .45 barrel with the same or thicker wall thickness can carry more pressure in the bore while stressing the barrel less than .50 cal.
There will be alot more on this subject Danny.
Happy Hunting, Phil