ORIGINAL: bigcountry
In 2003 and 04,I went onthis quest with my trusty stoney point OAL gauge and two 180gr partitions and went around to different gun stores and measured the throat lengths on 10 different 300RUM's. The OAl varied from 3.7" to 3.85". Anyone that knows machinging, knows thats huge variance. Max you can usually load in a long action BDL was 3.66". Thats a big jump to the rifling.
WOW, thats terrible! I never thought about trying that on new rifles. I bet the sales guy didn't like you.
And to clear up some things: REMINGTON DOES NOT OWN MARLIN!!!! CERBERUS DOES, THEY ALSO OWN DPMS, COBB, AND CHRYSLER, TO NAME A FEW.