Originally Posted by
f.2
What does bullet weight, grain, have to do with light loads and heavy loads? Light loads referring to the kick, or a mild load. Take the 9mm 115 gr vs. 124 gr, standard pressure factory fmj. The 115 gr bullet is smaller, lighter, so do they use less powder and / or add filler, because wouldn't you have more room for powder since the bullet is smaller that say the 124 gr bullet?
It all depends on the powder etc. Often lighter grain bullets have more powder. Has to do with the pressure curve, peak pressure, etc. More initial case room for expansion and lighter/smaller bullet means less pressure spike etc in many cases.
• formerly known as "eguns-com"
• M4Carbine required notice/disclaimer: I run eguns.com
•eguns.com has not been actively promoted in a long time though I still do Dillon special
orders, etc. and I have random left over inventory.
•"eguns.com" domain name for sale (not the webstore). Serious enquiries only.
Bookmarks