Well, because the ballistic coefficient of a BPC bullet is very low when compared to modern ammunition (.380 to about .420), wind drift is a major concern. Let s take a look at just how much wind can affect the flight of the bullet when it is blowing at 5, 10, 15, and 20 miles per hour.
Inflammation of the joints (arthritis) of the spine sometimes causes back pain. Osteoarthritis is the common form of arthritis and usually occurs in older people. Ankylosing spondylitis is another form of arthritis that can occur in young adults and which causes pain and stiffness in the lower back.
Back Pain Causes In Standing : A Short List. Now, a lot of the causes of lower back pain are too many to mention here. But, with most people, when they think about severe back pain, the first thing that comes to mind is âa bulging discâ. But this is only one of the several things included in spinal anatomy that can cause problems. A short list of potential back pain causes is as follows: