Ross: Regarding the BLRs, full-length resizing is usually recommended for lever action rifles because they typically don't have the camming action that bolt actions have in chambering the cartridge. In fact, small base dies (dies which actually resize the case slightly smaller than specs.) are often recommended. This really isn't a problem with a BLR, as the action design and rotating bolt head mimics a bolt action and one can frequently get away with just neck-sizing the cases.
Trigger on BLRs are usually creepy and heavy, but you have to be very careful about modifying them - the action gears that transfer the movement of the lever to the bolt have a specific timing and, upon disassembly, have to be put back with the proper timing relationship in order to properly lock-up the bolt. Even the Browning shop manual for the BLR refers to this as a trial and error adjustment and gives a specific gap measurement between the rotating bolt and the bolt body when it is installed correctly. In other words, make sure your gunsmith knows what he is doing when it comes to playing with BLR triggers, IMHO. There is more than one BLR out there that has been disassembled and never been put back together because someone couldn't figure out how to get the gear relationships correct.
In my experience, the heavy trigger issue goes completely un-noticed in field use.
The forends on my older-style BLRs are attached to the receiver via a long bolt that extends from the tip of the forend down its length to the receiver. The barrel band is pretty much cosmetic. If the barrel isn't free-floated, it certainly could be made such with little difficulty. The new take-down version would obviously be different in its attachment system.
One can single load a cartridge into a BLR with the magazine in place, but "topping off" the magazine from the loading port would be difficult.
Also, be advised that the newer Lighting style BLRs, with the folding hammer, can not utilize the hammer extension available for the older BLRs.
My .243 BLR shoots tiny groups with 105 grain Speers and IMR 4064 - despite its unaltered trigger and forend. It also likes IMR's SR4759 and 80 grain bullets for recreational shooting. And there isn't a firearm in my cabinent that carries as well as a BLR does in the field.
pagris
1977 .358 BLR
1980 .358 BLR - original owner
1987 .243 '81 BLR
1991 7mm-08 '81 BLR