RCBS vs. Lyman Mould for 41 Mag

[pb man]

I want to start casting for my S&W 41 mag. I can get the RCBS 41-210-SWC or the Lyman 410459. My primary reason will be paper punching with the secondary reason being to carry it as a backup when deer hunting in black bear country.

Is there any real difference in them in terms of casting ease or shooting accuracy?

Any other ideas to help me would also be appreciated.

[mtgrs737]

I have heard a lot of nice things said about the Lyman 410459 but I have no experiance with them. I cast the Saeco 410 and I really like it, casts well and has a flat base, large meplat, and a single lube groove. The RNF works well for speedloading in my 57.

[Larry Gibson]

I've used the Lyman, RCBS and Lee moulds for the .41 over the years. I use lee 170 and 210s for mild loads and the RCBS for my magnum load cast bullet. I really did like the Lyman 410610 GC bullet but the off and on availability of .41 GCs I gave up on it some years back. Never found any difference between the RCBS 210 SWC and the Lyman 410459 so since the RCBS is a double cavity and the Lyman I had was a single i went with the RCBS.

Larry Gibson

[missionary5155]

Good afternoon pb man
Are you loading for a M57 or M58 ? I dought it really matters but my m57 prefers a 210 over a 220 grain and deffinatly does mot shoot a 240grain well. I generally shoot the 41028 with 9-10 grains Unique. I save the high presure loads for my Dam Wesson or Rugers.
Mike in Peru

[BruceB]

I've used the RCBS 41-210 since Day One in my then-new Model 57 S&W. It shoots astonishingly well and has never given the slightest difficulty.

In MY wheelweight alloy, it casts at 217 grains, and I size it at a true .410". The standard load is 17.5 grains of 2400, which yields just over 1300 fps in my gun's 8.375" barrel.

[Throwback]

I don't have the RCBS so I can't provide you a comparison but I do have a 410459 double-cavity and I have found that it shoots very well, even if it isn't a "true Keith". It tollerates a wide range of velocities and delivers tight groups with many powders. I am guessing that because both molds have been around for a while, either bullet will shoot well enough to start off with. If you load for a calliber long enough you will tend to end up with multiple molds anyhow so go with the bullet weight that appeals to you, all other things being equal.

[Dew]

I use one cast bullet for the .41 Magnum. That is Lyman 41032. I've many moulds for the same calibers but that was the first mould I had for the 41 and have found it will do anything I want so I never bought any others.

[pb man]

I should have mentioned initially that I have the S&W 657-4. I like the way if points and handles. I am trying to stay away from GC bullets. From the information you have all provided it looks like I can not go wrong with either one. Thank you one and all. Sure happy I joined this board.

[crowbeaner]

I have the RCBS 41-210-KT, the Lyman 410459, the 410032, and the 410610 gascheck mould. The only Lyman mould I don't have but would like is the 41028. My M57s all liked the RCBS boolit best; the 410459 is longer overall, and the RCBS boolit wouldn't let me load all 6 chambers in my Ruger Bisley. The front driving band was too far forward when crimped and hit the chamber forcing cone. Try 10 grains of SR 4756 and the RCBS; an old Montana cowpuncher recommended it years ago and I shot thousands of them.