My Rem 700 LVSF has a long throat as well. I was unable to seat 40gr. Bergers out far enough to touch the lands. It was impossible as bullets seated just barely in the case still weren't long enough. So, I loaded a COL of 2.300" which is the max. length fits in the magazine. I tried several different powder loadings (BLC2, WW748 and H335) and the gun shot all well, especially BLC(2). My gun is shooting 1/2" 3 shot groups, so don't be discouraged about the long bullet jump as the .204 seems to shoot great despite this.
As an aside, I have no idea why so many .204's seem to have such a long throat. /ubbthreads/images/graemlins/confused1.gif