I bought some .41 mag 265 gr. hardcast bullets with gas check at our local manufacturer here in Ronan, MT. The manufacturer is Rim Rock Bullets Inc. I am in need of load info for this bullet. Thanx in advance for any and all help extended. MTG

I'll look and see what I might can dig up, but in the mean time have you asked the manufacturer if they have any data?

That's usually the best source.

Here is a few I used in my 6.5" blackhawk, accurate bullet, penetrates well,

19.0 gr IMR 4227, CCI 350 1125 fps

15.2 gr 2400, Win WLP

20.0 gr WW296, Win WLP

16.0 gr AA#9, Win WLP

17.0 gr Lil Gun, Win WLP

all were reasonably accurate, used the 4227 load as my hunting load, gave full length penetration on a mulie at 88 yds.

Smith 357PD Airweight in .41 Magnum here.

My big load is 15-15.5gr. of 2400, Federal Large Pistol Match Primer (*NOT mag primer!), 265 gr. Beartooth WLNFP-GC bullet. (That's Wide Long Nose Flat Point Gas Checked, Acronym ridden chunk of lead!)

Groups well and delivered 1100 fps in a 4" bbl.

MK/TX, I did ask the manufacturer if he loaded these cast bullets. His reply was to check with Buffalo Bore and they will give no loading info. I will try the W296 as I have some of this powder. Thanx. MTG