A heavier bullet tends to keep it''s velocity better and penetrate better everything else being equal, however that is never the case. Diffrent bullets for the same cal are designed to expand faster or slower in a certin velocity range. Add to that .308 bullet of 125 gr fired hitting a target at 50 yards will have a higher vel than a 190 gr will. At aroung 500 yards or so the 190 will retain its velocity better and actually be travelling faster than the 125 that was initally faster. Add to the fact that lighter bulletts tend to be made to expand faster than heavier bulletts, as well as other factors it starts getting complicated.We7det_el_qetal_ra3d said:I really want to know your opinions on achieving penetration
do we go "heavy and slow" or "fast and light"
my personal opinion is the latter.
All i ment was that to fire the .311 bullets you would have to rebarrel the 300 RUM to more of a "303 RUM". Im guessing that would be a little tough since nobody i know of makes such a round and would be difficult to find a reamer for it.Well actually it wouldn't be that hard to out neck the RUM case slightly to accept .311 bullets
Its not the casing you have to worry about making fit an AK round its the bore. Kinda dangerous to be shooting .311 bullets through a bore designed for .308. You can, however, use the American Eagle and Winchester Metric 122gr 7.62mm bullets since they ARE .3080". Heck, you can even load up some .30 carbine 110gr bullets into a 300 RUM!We7det_el_qetal_ra3d said:Well actually it wouldn't be that hard to out neck the RUM case slightly to accept .311 bullets