Newbie needs help with 41 mag proposed loads

[boatbum101]

First post so I hope this is in the right forum area . Am putting together loads for a S&W Model 58 . I do not as yet cast ( I know heresy ) myself . I've got 1k of Missouri Bullets 215 LSWC Trooper Magma design mold . 18 BHN & sized .411 , fits gun good . I probably need a softer bullet as my intent was a load between 1000 to 1100 fps . Doing the math ( 18 BHN X 1440 = 25,960 ( psi or cup ? ) min press to obturate . Well I don't have any load software so I'm by guess . Powders I plan on using initally are Unique ( 7.5 to 9grs ), Universal ( 7.0 to 8.5 grs ), SR 7625 ( 7.5 to 9.0 grs ) , 2400( 14.5 to 17grs ) & H4227 ( 16.5 to 18grs ) . Other powders I'm considering are VVN 340 & 350 , SR 4756 & maybe RS Enforcer . Though 18 bhn alloy will hold up to full pressure load that is not what I'm looking for . I'm also concerned about the lube & since bullet is a good fit @ .411 sized . I'm wondering if LLA or White Label LA with JPW & tumble / dip lubing with these will help . PITA I know but nobody likes scrubbing lead out a gun . See how this goes & I'm pretty sure a softer alloy sized .411 is what I wind up with . BTW I've used Lyman 410610 data for load suggestions as it too has a long shank seated into the case & I'm figuring pressures should be close . Any help or suggestions gratefully accepted . Thanks ,
Andy

[Cherokee]

I use a softer alloy and size to .412 for my Ruger Blackhawk's. The bullet is harder than you need. I would try the UNIQUE load first. Your gun will tell you if the bullet does not fit by leaving a few lead deposits. only way to know is try, and it might work fine. I'm sure others will add their info.

[runfiverun]

anything bigger than 411 won't chamber in either my black hawk or in my hunter model.
8.5 grs of the unique or universal is a good load.
as is 16 grs of the 2400.

[huntrick64]

I size my MP 223 gr. keith bullet to .412, load in Starline brass using WLP primers. Swapping around with Unique, HP-38, H110, Bullseye, Power Pistol, 2400, and MP-300. My most impressive loads in accuracy and power came from Mp-300 first then 2400. Most impressive in accuracy only was HP-38. I shoot BHN 14 bullets all the way to the top and, now that I have the barrel constriction out, it never leads. Shooting these out of a Lew Horton S&W stainless with a 7" barrel and removeable compensator. I love the 41 and hope to get a bisley in it as well as a model 92 lever.

[41 mag fan]

Best i've found in all my 41's is 4227 and 2400. But I'm shooting jacketed thru it, as I use this for a deer load.

[Larry Gibson]

Suggest, with that bullet, you start off with your 7.5 - 9 gr Unique load; 8.5 gr, as previously mentioned, has always been a good load for 210 - 215 gr commercial cast for me in several .41s including a couple M58s. The BHN at 18 is fairly hrd and typical for most commercial cast. You may get leading depending on what lube is on the bullet. When that happens I find a TL in LLA many times helps or I wash off the lube used and relube.

Larry Gibson

[Kraschenbirn]

When I was shooting IHMSA regularly, 4227 (either IMR or Hodgden) was my 'go-to' for upper-end loads for heavy boolits (238 gr. NEIs) in the .41 Mag. and for 'mid-range' with 180 or 210 grainers, both Unique and AA #5 worked quite well.

+1 on what Larry said about lubes. Recently, I was given a couple cartons of commercial 'hard-cast' .44 SWCs with a hard parafin-based lube. Loaded up a few and was seeing signs of leading after just a dozen shots. Tumble-lubed a handful with 45/45/10...which is what I use on all my own cast .44s...and no apparent leading from next test loads.

Bill