Help support WeTheArmed.com by visiting our sponsors.

Author Topic: 357 magnum and W296  (Read 2151 times)

xsquidgator

  • Contributor
  • ****
  • Posts: 1834

  • Offline
357 magnum and W296
« on: February 19, 2009, 09:16:27 PM »
I have a couple of pounds of W296 I got for loading 30 M1 Carbine.  I thought it was interesting to learn that W296 is apparently the powder Winchester uses to load their commercial 357 magnum ammo.  

There is W296 data at Hodgdon.com for bullet weights ranging from 110 to 180 grains.  Yet, the data line for 158LSWC is blank.  Anyone know why? It turns out I cast my own 158LSWC and would like to try working up a load with these and see if I can get a higher muzzle velocity than with W231.  Is there anything unsafe about trying this?  If nothing else I was thinking of trying the W296 starting load for 158XTP bullets, figuring my lead ones will go a little faster than the jacketed with the same powder charge.
NRA Life Member, Member GOA, JFPFO, Unified Sportsmen of Florida, American Legion.
NRA-Certified Instructor.  IDPA Safety Officer.  Appleseed IIT.


THE NORSEMAN

  • To preserve liberty, it is essential that the whole body of the people always possess arms, and be taught alike, especially when young, how to use them. - Richard Henry Lee
  • Moderator
  • Senior Contributor
  • *****
  • Posts: 4907

  • Offline
Re: 357 magnum and W296
« Reply #1 on: February 19, 2009, 09:34:11 PM »
Quote
Yet, the data line for 158LSWC is blank.  Anyone know why? It turns out I cast my own 158LSWC and would like to try working up a load with these and see if I can get a higher muzzle velocity than with W231.

1.  Why no data?  They ass/u/me you're using soft or swadged lead.  BAD combo with 296.  With a hard cast(like lazer-cast) 296 works just fine.

2.  If you DON'T get A LOT more velocity with 296 than 231 in this combo, you doing something all wrong.  You're either loading 231 much heavier than it was intended to be or downloading 296 to the dangerous and very dirty point.

You can use jacketed data for the same slug weight just fine, if not a little more.  But the forum disclaimer applies.  Go slow, go careful, and use your head.  With 296 always use magnum primers.  2400 works better with lead, but 296 is just fine with hard slugs and a magnum load.

As a bonus point-
You like sushi or chinese food?  If so 296 is a treat.  It smells like ginger tastes.  No lie. ;D

« Last Edit: February 20, 2009, 09:20:35 AM by THE NORSEMAN »
This may be considered as the true palladium of liberty...
The right of self defense is the first law of nature.

xsquidgator

  • Contributor
  • ****
  • Posts: 1834

  • Offline
Re: 357 magnum and W296
« Reply #2 on: February 20, 2009, 06:26:54 AM »
Norseman,
Thanks for the info.  I may have to get some SP magnum primers and give it a try.  My home cast bullets are probably hard enough, they're an alloy kind of like WW that I drop into water.  My recollection is that after a week or so they would get up to around 15 BHN per the cheap little hardness tester I have.  I use filler (cream of wheat) to prevent leading with fast loads. 

And not only do I like sushi, ginger is the part about it I like the best- I'll look forward to seeing about the smell!  (if the smell of burning cream of wheat doesn't overpower it)
NRA Life Member, Member GOA, JFPFO, Unified Sportsmen of Florida, American Legion.
NRA-Certified Instructor.  IDPA Safety Officer.  Appleseed IIT.

THE NORSEMAN

  • To preserve liberty, it is essential that the whole body of the people always possess arms, and be taught alike, especially when young, how to use them. - Richard Henry Lee
  • Moderator
  • Senior Contributor
  • *****
  • Posts: 4907

  • Offline
Re: 357 magnum and W296
« Reply #3 on: February 20, 2009, 09:23:53 AM »
Quote
(if the smell of burning cream of wheat doesn't overpower it)

Won't happen with 296.  There won't be any room left in the case for fillers.  In fact you'll most likely find it to be a slightly compressed load.
This may be considered as the true palladium of liberty...
The right of self defense is the first law of nature.


Help support WeTheArmed.com by visiting our sponsors.