.357 Mag with 158 gr LSWC and 2400
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Old 04-16-2012, 11:19 PM   #1
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Default .357 Mag with 158 gr LSWC and 2400

Can anybody advise me as to why Speer does not list Alliant 2400 in their loads for a 158 gr LSWC? I have found recipes on the net for this combination. I don't have enough other manuals yet in my library. I figure that there must be a reason, given that Speer, Alliant, RCBS, etc. are all under the ATK umbrella. You would think that if 2400 made sense for a 158 gr LSWC they would publish it.

Any insight would be appreciated.

Thanks,

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Old 04-17-2012, 12:43 AM   #2
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Lyman 46th manual lists 2400 @ 11.4 start and 15.5 max with 158 gr. cast lead bullets. I would think leading would be a problem at that velocity.

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Old 04-17-2012, 01:09 AM   #3
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Can you gas check the LSWC?

Without it you will paint your barrel with lead.

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Old 04-17-2012, 02:25 AM   #4
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I've shot a lot of hot loaded 150-170 SWC bullets out of .357s, both gas checked and not gas checked, with little to no leading. Have cleaned several of other's revolvers that were loaded quite mild but they plated the bore with lead; meaning there's a bit more to it than a simple gas check. A properly hard alloy and a good bullet lube are the keys to shooting cast pistol bullets without leading. IMHO.

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Old 04-17-2012, 04:18 AM   #5
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Quote:
Originally Posted by 1hole View Post
I've shot a lot of hot loaded 150-170 SWC bullets out of .357s, both gas checked and not gas checked, with little to no leading. Have cleaned several of other's revolvers that were loaded quite mild but they plated the bore with lead; meaning there's a bit more to it than a simple gas check. A properly hard alloy and a good bullet lube are the keys to shooting cast pistol bullets without leading. IMHO.
Close, but actually the biggest factor in eliminating leading is proper bullet fit/size. You can take an unchecked cast bullet with bhn=12 to 1500 fps without leading if you have proper fit and a decent lube. Powder choice can also influence leading, as can alloy "hardness". When shooting cast bullets, fit is king. The influence of the other factors is much less prevalent.

Shooting too soft or too hard an alloy will also cause leading. It is kind of like the story of Goldilocks and the 3 bears except with alloy hardness. Too soft, it will lead like crazy. Too hard, it will not seal up the bore and will skid down the barrell allowing flame cutting from the burning powder. Straight clip-on wheelweight alloy will handle anything you can put through a factory revolver. Most of my handgun loads are made from a 50/50 mix of clip-on WW and pure lead. The bhn is right around 10 and my velocities are up to around 1200 fps in my heavy loads. When I am planning on staying below 1000 fps, I generally go 25/75 clip-on/pure + 1% tin.
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Old 04-17-2012, 04:20 AM   #6
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Is there reason you have to use 2400? When using cast bullets I have found Blue Dot works great in loads just under 1000 fps. with my .357.

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Old 04-17-2012, 05:14 AM   #7
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The old go to load for years was 16/2400 with 158 grs. SWC. You can use straight WW metal without gas checks. As stated bullet size to bore is the major factor in leading. Gas checks in handguns is a waste. Most handguns are not going to get a velocity above 1,500 fps. in the larger calibers. Those guns that do should be using Linotype with gas checks.

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Old 04-18-2012, 12:59 AM   #8
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2400 is a good choice, but a little on the dirty side. I prefer W296
and gas checked bullets.

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Old 04-18-2012, 01:10 AM   #9
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The new 2400 is much cleaner than the older 2400. I agree 296 or H110 is a better choice.

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Old 04-18-2012, 10:18 AM   #10
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Thanks for all the responses folks. Much appreciated.

Quote:
Originally Posted by tomingreeneco View Post
Is there reason you have to use 2400? When using cast bullets I have found Blue Dot works great in loads just under 1000 fps. with my .357.
When I got my reloading press a few weeks ago, I looked through the book and decided to by a pound of Unique and a pound of 2400, to use with .38 special and .357 mag. At the time I was not contemplating shooting LSWC. Now of course, I am contemplating casting LSWC!
If at judgment day, "He with the most hobbies wins!", I'm gonna be a contender!
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