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.
Millions of Americans suffer from back pain every year. The reasons for the pain are many, including bad posture, accidents, improper lifting, obesity, and weak muscles. Practice prevention to minimize your risk for back pain â get regular exercise, lose any excess weight, and learn good posture. Asthma.