Death from Afar, having dealt with a BAR personally I can say firing in Full Automatic it is very controllable not sure which one you fired but the one I fired was very controllable. Other BAR gunners I talked to from the old school USMC have told me they would sooner take a BAR than a M-14 for the simple reason that in auto mode you can control it and if you have problems with the fast rate you just switch it over to the slow rate. But the weight of the gun proved to your advantage in a fire fight it alone helped control the recoil. Compared to other counterparts of its kind the BAR is hands down king of the Titans comparing with the BM-59 and the M-14. All this said with respect and taking nothing away from what you said just telling you from personal experience IMO Heavy yes awkward yes as for the range estimates I would say that the BAR would do as good as the M-60 I will research that and get back on that one.
"In the beginning of a change, the patriot is a scarce man and brave, hated and scorned. When his cause succeeds, however, the timid join him, for then it costs nothing to be a patriot."