Lipseys has commissioned Magnum Research to make two special BFR revolvers. Both are using BFR Bisley grips and both are 5 round unfluted cylinders. Both have 5 and 3/4 inch barrels and make these two big-bore cartridges easier to carry in that weight and that barrel length. I looked both up on the extensive Lipseys site.
Jeffrey G. Locke