585 Nyati

[cmillard]

lee, since you are a glutton for punishment and like to experiment at the expense of your own body (shoulders and hand/wrist bones), I have been kind of thinking about something like this....taking a .500 JRH BFR and having the cylinder window opened up some (all the way around if possible), then having the largest cylinder possible made and have a new designed round, say 1.5" long casing and having a bore diameter of .550 or .585 (pac nor makes barrels). has a thought like this crossed your mind? I think this round would be appropriate for anything ranging from ground squirrels to blue whale--and when scientists bring back the wooly mammoth.

[cmillard]

don't know what kind of brass would work for this--maybe cut down .50-90? thoughts like this is what keeps me up at night--wondering what it would be like to be able to make this kind of stuff

[Lee Martin]

Sept 20, 2014 17:44:40 GMT -5 cmillard said:

lee, since you are a glutton for punishment and like to experiment at the expense of your own body (shoulders and hand/wrist bones), I have been kind of thinking about something like this....taking a .500 JRH BFR and having the cylinder window opened up some (all the way around if possible), then having the largest cylinder possible made and have a new designed round, say 1.5" long casing and having a bore diameter of .550 or .585 (pac nor makes barrels). has a thought like this crossed your mind? I think this round would be appropriate for anything ranging from ground squirrels to blue whale--and when scientists bring back the wooly mammoth.

Can't legally build a handgun with a bore diameter over a half-inch. Plus, there isn't room to safely do it in a BFR. Besides, the walls would be so thin you couldn't run much pressure. And even if you could, timing would be a real bitch. Remember, when you open a cylinder window, you have to shorten the bolt height. That isn't hard on a 475 or 500 because there's adequate adjustment left in the hammer plunger. I suspect that wouldn't be the case with 550 and up. Two other limitations:

1) The loading gate. We're pretty tight in grinding out for the 500 Linebaughs. Bigger would be a headache
2) A terribly thin barrel shank. Even fully shrouded, the forcing cone would be weak (and I don't recommend boring and re-threading the frame inlet).

As for the Overkill, it's coming. My focus right now is 100% on this benchrest rifle....but the .600 is on the horizon. In fact, I have everything but the barrel and the reamer. Hope to get the latter cut by the first of the year.

-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

[cmillard]

lee, thanks for the reply. I would assume that this would apply to the large frame BFR as well? legalities aside. by the way, can't wait to see the finished product on your bench rifle and your upcoming big boomer!