I just took a quick look at Remingtons website.A 700 bdl msrp is $985 and they weigh in about 7.375 lbs.My free floated flattop 18 in bbl DPMS LR308L weighs 7.9 lbs and cost $1200.It groups as well as a good bolt production rifle.
I agree,bull bbls make the AR's pretty heavy,but who wants to carry a bull bbl Rem 700?
I have no desire to run down the M1-A/M-14,I respect it.I do not think many of them sell for less than $1200,and I don't think many are in the 8lb zone
Actually,I think if you compare the Rem 742,the old Win 100,and the BAR sporting semi autos,they do not come in lighter,either.
Some of the posts here seem misleading.
These rifles will not be as common as the 556/223's,for a number of reasons,but,up till recently,they have been made of unobtainium.As more mfg's ,configs and offerings such as receivers,bbls,mags(Magpul is making P-mags in the SR-25/DPMS pattern)forends,tools,7.62 scopes,I think popularity will rise.