About .4 inch drop with the slower round at 300 yards.
Just a SWAG since I didn't look up the BC because it probably is the same in both.
I just plugged in a .36 but the lower the BC the more difference it will make but it's going to be measured in hundreths.
Don't hold me to it. It's late.
That's just graphite on paper. FMJ on paper could well vary more.
Originally Posted By 007Kevin:
federal xm193 3165fps
PMC 223 3200 fps
both 55g FMJ
18" 223 wylde chamber
No. Each shot with one type of ammo will vary more than that in velocity.
Well I would say it didn't make enough difference to not hit a silhouette at 300yds today nor miss anything in between. Thanks for the help!