Lyman 358 mould differences?

[msp2640]

Gents - Anyone have an idea as to the differences in the mould design between the Lyman 358429 and the 358439? Both are about the same weight and PB versions, but I thought I read somewhere it was for seating depth at the crimping groove for certain revolvers - but I don't recall which bullet for which revolver, etc - I thought, but could be wrong, but maybe the S&W 19 vs 27 - Can someone shed some light on the difference or point me in the right direction? - Thanks Bill in MA

[Maven]

Wasn't #359439 a hollow point iteration of -429?. Btw, either were originally intended for loading in the .38Spl. cartridge, which they fit perfectly. On the other hand, the .357Mag., presents a problem with respect to OAL. Lyman recommended seating them deep enough to allow crimping over the first driving band, which works albeit with increased pressure. Brian Pearce has recommended trimming .357Mag. brass to 1.25" and seating and crimping normally, i.e., in the crimp groove. Then too, some revolvers' cylinders, my Ruger NM BH for example, are long enough to allow 1.28" .357Mag. brass + #358429 to be crimped normally.


P.S. Several members of this site, e.g., BruceB, will tell you that the dimensions or profile #358429 have undergone a myriad of changes over the years.

[waksupi]

Scroll on down the page, to Castpics. Look in the molds section for a comparison.

[Maven]

Ideal/Lyman #358439 is indeed a hollow point mold: http://www.ebay.com/itm/Lyman-bullet-mold-358439-hollowpoint-semiwadcutter-/320991500461?pt=LH_DefaultDomain_0&hash=item4abc9598ad#ht_60wt_1043

[GP100man]

The cyl. needs to be 1.600" or longer if not crimp over the front band. When I crimp over the front band I even back off the start loads 5%

[MtGun44]

At that time, Lyman used a totally different number for the SAME design, but with a hollow point
rather than the later practice of calling it the same number but adding HP at the end.

358429 and 358439 are the same design, 439 is HP. Both are Elmer Keith's design for .38 Spl
and work only in "most" .357 Mags, not ones with short cylinders.

Bill

[GP100man]

Not to hijack this thread but look at my thread on 358429????

There`s been changes ,alot of changes in Lymans line up for the 38/357 mag over the yrs. some good some better & some not so .

& 439 is the number for a factory 358429 HPed.

Here`s a pic of the 357446 same number but obviously from different time periods & cherries !

The DW boolit ya have to push to get it to shoot decent (even for me) The IDEAL shoots the whole power spectrum.

http://i746.photobucket.com/albums/xx110/GP100man/102_0489.jpg

:cbpour:

[msp2640]

Gents - Thanks for the responses. It didn't seem/ sound right that Lyman had 2 different mould numbers for a regular and HP version. I might be getting my wires crossed when I was thinking /or seem to recall reading an article about different 357/38 slugs for different cylinders, based on OAL. It figures I have a 429421 in both a solid and HP verson and the numbers are the same. Thanks for the help regardless - Bill in MA

[GLL]

There was an IDEAL /LYMAN 358429, a 358429HP, AND a 358439 (which was always HP). Through the years the design of these three molds was all over the map !
45 2.1 resolved some of the cylinder fit problems by designing his 359429 Group Buy mold first run by CAT as a LEE 6-cavity some years ago.

IDEAL 358429, 45 2.1 design 358429, LYMAN 359439
http://www.fototime.com/EE931141944BC3F/standard.jpg

Elmer originally designed the 358429 to shoot in this .38/44 Outdoorsman revolver :
http://www.fototime.com/3F7A8BDFAAE1956/medium800.jpg

http://www.fototime.com/E2A985B719EF63F/large.jpg

Jerry