January 17, 2010, 07:37 PM | #1 |
Junior Member
Join Date: June 18, 2009
Posts: 13
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is sizing required??
I Have 2 molds 200 grain 45acp,----- and 158grain 38/357.
Both are lee 6 cavity tumble lube dies. 45acps coming out of dies at .452 38/357 dopping at .358. I sized the first batch of both. 38's to.357, and 45acp's to .451 The reason I ask, and am now confused- 38/357 a. I have purchased cast bullets on-line from a couple manufacturers, and when I checked the purchased ones ( 3 brands)they measure .358. b. I bought the 357 sizing die based on input from lyman manual. c. Lee info says neither 45acp or 38/357 have to be sized if they don't deform brass when loading, but not to shoot any that don't chamber. d. the bullet "drawings" in lyman manual show dimmensions [email protected], and [email protected] if drawings are correct it would seem sizing is not needed. e. The more I study this , the more confusing it gets. It would save a big step if sizing is really not required. My final thought is that one is revolver and one is semiauto, and the rules may be different between the two? I will figure this out eventually , however today I don't understand it------ |
January 17, 2010, 10:18 PM | #2 |
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Join Date: April 5, 2008
Location: South Central Minnesota
Posts: 584
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Lee says that sizing is generally not necessary with their tumble lube moulds.
I use their 2 hole 200 swc .452 mould. Mine normally drop at .452. I also use the factory crimp die. This greatly helps iron out any feeding issues. |
January 17, 2010, 10:48 PM | #3 |
Senior Member
Join Date: May 30, 2009
Posts: 136
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It is best to slug your cylinder and barrel for your 38/357 and barrel for your 45. My .357 measures .3575 so I use a .358, my 45 measures .4515 so I use a .452. You want to go larger the your barrel.
What I used to slug the barrel, were egg shaped fishing weights well oiled and a well oiled barrel and tapped down with a wooded dowel rod about the same dia. as the barrel. |
January 18, 2010, 07:13 AM | #4 |
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Join Date: December 23, 2008
Location: Southern Illinois
Posts: 1,527
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Shoot them as cast, they will be fine. But it is a good idea as stated above to slug our bore. I shoot all my bullets .001-.002 over bore diameter. Good luck!
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January 18, 2010, 07:58 PM | #5 |
Junior Member
Join Date: June 18, 2009
Posts: 13
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sizing
Thanks everyone!
I especially like the idea of using sinkers to slug barrels I always wanted to slug my barrels but Thought I had to buy a kit to accomplish this, and never seemed to get around to it. Just so happens I have lots of tackleboxes full of stuff. Its wintertime so its time to clean/ reorganize them anyway for next year ---bet I can find the right sinkers-- Probably time to slug all my guns-- |
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