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Old 04-21-2017, 05:33 PM   #1
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New to Site and Reloading, Sorry

I have what will seem like an extremely stupid question and I know this. I apologize in advance for this too. I have this:

https://www.midwayusa.com/product/42...nniversary-kit

Now for the question. When it comes to case trimming, am I able to just buy a case length gauge like what is linked below or do I also need to buy the die since the kit comes with a separate cutter and lock stud?

https://www.midwayusa.com/product/31...der-357-magnum


Thank you in advance for any help I get on this. Never reloaded and I don't want to start incorrectly or just waste money on the wrong equipment.
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Old 04-22-2017, 03:31 PM   #2
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Your first(top) link will not open for me. My first question is what caliber are you planning to begin your handloading career?? A good number of handgun caliber brass never needs to be trimmed.....rifle, most do, but not all.

It is not a stupid question if you don't know the answer.
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Old 04-22-2017, 04:07 PM   #3
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Here is what the first length is:
Lee Challenger Breech Lock Single Stage Press Anniversary Kit



As far as reloading, I am starting with 223 and 357 mag. I have a few cases of 357 that are over trim length. I have a lot of 223 that are. I knew that the 223 would stretch and I was kinda surprised at the 357, but I think I bought them as reloads.
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Old 04-23-2017, 03:02 AM   #4
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The Lee case trimmer, which, like all trimmers, is really for bottleneck cases and almost no straightwall case (and no handgun case I ever worked with) grows, goes into the case. There should be instructions, but you place the case head in the Lee holder and insert the trimmer into the flash hole and trim.
The .357 Mag cases may be over trim length, but I'll bet they aren't over max length.
You can trim a rimmed case, but it has never given me increased accuracy and, if you shoot those cases for awhile, you'll find they shrink over time.
Get and read Richard Lee's #2 manual for lots of information on Lee products and LOTS of load data.
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Old 04-23-2017, 09:37 AM   #5
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As far as the trim length, I am going off the measurements of the case on the round diagram in the Lyman and Lee book where they show the image of the round with all of the lengths. As far as the 357mag rounds, I have something around 8 out of 150 that are longer than the image provided by these books. Now, if I understand you correctly noylj, I do not really need the trimming die that goes in the press then, correct? That is where I frankly get confused. I bought that reloading kit and it came with a stand alone case prepping "package" along with the rotating trimmer head that fits inside one of the reloading dies. Did I just receive parts for 2 different ways of trimming?
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Old 04-24-2017, 07:54 AM   #6
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As a practical matter you are unlikely to ever need to trim a pistol cartridge... with the possible exception of the .22 Jet and even with that cartridge I have never needed to trim, though I shoot very little with it so it could stretch after a few reloadings.

So for rifle you most likely will need to trim some.

The best advice I can give a beginner is get a copy of Lymans #50 manual and read it thoroughly... it has everything you need to know.

Good luck

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Old 04-24-2017, 10:47 AM   #7
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Lee has a "coffee grinder" trim die I have heard of, but never seen.
You say you have .357 Mag cases that exceed the max case length (>1.290")? Wow. In over 40 years I have never heard of or see such a thing. If true, then, yes, you need to trim the cases (but only to under max length). Don't think Lee lets you set the trim length.
Lee: Read all instructions and pay attention to everything as even their "suggestions" are really almost absolute RULES.
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Old 04-24-2017, 01:34 PM   #8
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Quote:
Originally Posted by noylj View Post
Lee has a "coffee grinder" trim die I have heard of, but never seen.
You say you have .357 Mag cases that exceed the max case length (>1.290")? Wow. In over 40 years I have never heard of or see such a thing. If true, then, yes, you need to trim the cases (but only to under max length). Don't think Lee lets you set the trim length.
Lee: Read all instructions and pay attention to everything as even their "suggestions" are really almost absolute RULES.

Measuring those 8 357 casing I get 1.293-1.299. I am assuming I am not being too anal about the measurements. I am assuming the trimmer you are referring to is the "ZipTrim". I have heard of people filing off some of the end of the trim gauge to give them a "deeper" trim. I use "deeper" for lack of a better term. I won't be doing this because I want to learn to walk before I run.
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Old 04-24-2017, 03:18 PM   #9
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Handgun magnum brass will "grow" if repeatedly loaded to full bore loads....or above. The folks that load to these levels will trim the brass back to within standard so as to have consistent crimping on all cartridges that they load.

I load and shoot 357Mag, but do not load in the upper power levels, and have never had a need to trim any of my brass. The .223/556 brass will need to be trimmed for performance and consistency of functioning.
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