Lyman 429421 from A Ruger SBH, questions?


January 18, 2007, 12:28 PM
Anyone out there casting and shooting the Lyman 429421 245 gr Keith bullet and successfully pushing them to 1300+ fps from Ruger SA pistols? I'm on the fence with which molds to order and I really like that I won't need to seat gas checks using this mold. Thanks in advance for any insight.

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January 18, 2007, 04:14 PM
That is a pretty tall order, but the best bullet I can think of to do the job. At that kind of speed you better have the throats sized right, the forcing cone smooth and a GREAT bullet lube. Bullets will need to be pretty hard but not silly hard. I would start with about a cup of magnum shot in wheelwieghts and water drop them. If all else fails you still have the best lead bullet mold for a 44 out there, and at 1100ish they shoot fantasticly well.

January 18, 2007, 04:30 PM
Thanks Hsmith,
Is 1100-1200 a more realistic goal? I've got about 100 lbs of lino I plan to use for my heavier loads.
20-21 gr 2400

January 18, 2007, 05:15 PM
I would start at 5% lino in wheelweights or a bit more. It doesn't take a lot if you water drop the bullets. Straight lino is way too valuable to shoot cast pure.

1100 is a cake walk, 1300 is easily accomplished but how they will shoot from your gun is another subject.

January 18, 2007, 05:20 PM
I have cast and reloaded the Lyman 429421 bullet for many years, also shot it in a SBH with linotype metal. It is my opinion that you are trying to push a bullet way past it's normal capacity. Once you pass Keith's load of 45/22gr/2400 you will start to experience severe leading. If you go to a much harder lead aloy you will be taking a chance of the bullets disintergrading in flight or breaking up upon impact. If you do want to experiment, try "Lazer Cast" bullets from Oregon Trail. They are the hardest cast bullets I have ever seen. However anything over 1150 or so fps calls for a jacketed bullet.

January 19, 2007, 09:50 AM
Loadedround, I'd expect 22 gr of 2400 behind a 250 gr cast bullet to shoot well over 1150 fps from my rugers. I suspect I could get to 1100 pretty easy with 9.5-10 gr of unique. What I'm trying to acheive is one mold for both Heavy loads and my standard light 950+fps unique loads.

January 19, 2007, 01:29 PM
Bula: Maybe I'm getting fuzzy minded in my old age, but I am now confused on what you want to do. The Lyman 429421 mold probably casts the best 44 spec/mag bullet there is. If you still want to push it faster and insist on a cast bullet, go to a SWC bullet with a gas check. Please give me a little more information on what you want to do.

January 19, 2007, 05:07 PM
Loadedround, I appreciate the the info. You kind of already answered my question. I'm trying to avoid having to cast a non gas checked design for my low pressure rounds and a GC design for my full house rounds. Looks like I may decide to pour 2 types (at minimum) of 44 cal bullets.

January 19, 2007, 05:40 PM
Try that 429421 before you buy a gaschecked mold. 2% tin and a cup of magnum shot or a pound of Lino added to each 10 pounds of wheelweights. Drop the bullets straight out of the mold into water (CAREFULLY!!!!) and they will be as hard as you ever could need out of a handgun. I like to cast the bullets pretty frosty looking, they hold the lube well and are plenty hot when you water drop them. Size within an hour or two, and let the bullets sit two weeks or so before loading. LBT Blue is the best commercial lube you might be able to use, if you have some I would bet the results will be pretty darn good. I have shot 357 bullets well over 1100 fps this way with no leading at all using H110.

January 20, 2007, 02:15 PM
CAUTION: The following post includes loading data that may be beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The High Road, nor the staff of THR assume any liability for any damage or injury resulting from use of this information.

Bula I used the 44 for 8 years without rest so to speak. I shot only one load, Lyman 429421 & 20 grs. of 2400. You can cast these at 9-12 bhn and IF they fit your sixgun & your lube is worth filling the grooves with, leading will be no problem. BTW this load did 1201 fps from my 4" M-29.....Creeker

January 20, 2007, 08:35 PM
Bula--I've cast and shot the 429421 for for many years over max loads of 296, AA9, 2400 and Blue dot out of my 7.5" Super Blackhawk with excellent accuracy and little to no leading (none that builds up or affects accuracy). Velocities with those powders run from 1250-1350 fps depending on the powder. I shoot the same velocity range in the .357 with 358429 with the above powders and excellent accuracy. I've never felt the need for gas checks in handgun cartridges just another step and expense IMO.

January 21, 2007, 01:21 PM
been casting for and shootin a marlin since 79 and a sbh since 82.plain ww and a good lube are fine with full house loads.a bit of tin (2% works) makes a more purty,sharply defined bullet.ditto on dropping into a bucket of cold water.makes them hard enough you cant hardly scratch them with a thumbnail.they can run 15 to 16 bhn.heat treating is not needed for the 44 mag.24 gr h110 is a well published load and has worked for years for me.i went from a 240 gr rcbs gc mould to the 429421 a long time ago and never missed the gas check.that load shoots at 1725 in the marlin accurately and doesnt lead.never clocked the sbh but i dont get leading in it either.i dont even bother to size,i just pan lube.if you want a light load in the sbh i found that a 200 gr with 7 gr of 231 shoots at the same spot at 25 yds,where a 240 with a light charge shoots about 6 inches higher than the 240 and 24 gr of 110.the 200 gr nose profile makes it easy to identify which loads you have.shot 90 lbs thru the sbh winter of 82 and most of them were light loads.900 to 1000 fps makes for a bunch more fun when you can small game hunt and have somethin left to pick up and eat.i have a rb mould that i plan on a 600 fps load to sqirrell hunt with,just havent got started yet.the keith type design is a great performing bullet without expanding,on small game and for large game as well.

January 22, 2007, 12:29 PM
Thanks for the insight everyone. I appreciate your help. I like the idea of shooting lighter bullets in my lighter loads to achieve the same POI. Casting sure adds an entirely new 'view' on reloading.

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