Newbie's loads for 41 magnum

Discussion in 'The Ammo & Reloading Forum' started by NEILT, Dec 3, 2011.

  1. NEILT

    NEILT New Member

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    So after my lee safety scale had to be taken back I decided to see if the rest of my equipment would work and loaded up a couple different loads. Now it seems info on what to do and what not to do is subjective and some time contradictory (aka at this point i'm confused:confused:). But I figured I would put my loads up and see if I couldn't get people to check their load books and pick their brains a bit (besides I can always take them apart, but at least I get experience with the equipment). so here it goes.

    I had a big bin of berry's plated bullets (from research keep lower then 1200 fps and treat as lead)

    using starline brass and CCI primers, I used the lee scoops since I had to order a new scale (on its way)

    according to the card in the scales, I have the two smallest scoops equaling 7.3 grains of unique powder(kind of worried about using two scoops :eek: I may take these apart and redo). And the third scoop equals 6.4 grains of unique.

    so those are my two loads. Berry's 210grn plated bullets with 7.3 and 6.4 grains of unique. Tell me what you think!

    Also I could use some info on crimping (how to look for too much or too little) and why people say not to go below minimum loads. They say not to do it but can't find any info on why?
  2. LDBennett

    LDBennett Well-Known Member

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    NEILT:

    In my experience Lee scoops are notoriously light on powder loads probably to assure the reloader doesn't blow the gun up. While some reload with LEE scoops I think it prudent to wait for the delivery of your new scale.

    Loads of some powders below the starting load are said to be detonation prone. That is, the powder rather than just burning as designed, explodes all at once making for a tremendous pressure spike which might be enough to destroy the gun and you. It is controversial but most reloading equipment manufacturers and powder companies usually instruct that you should never reload below the reloading manual's starting load. Now, you can shop manuals and find some have lower starting loads than others but that just means those that are lower actually tested the load and found them not to be dangerous for any reason. Down loading without reloading manual guidance is not safe. Internet loads may not be safe if their source is not a recognized source that uses tested load (with pressure barrels and testing equipment).

    LDBennett
  3. myfriendis410

    myfriendis410 Member

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    Both of those loads (assuming you are actually delivering that amount of powder) are both well within tolerance for the .42 mag. I routinely load 8.0 behind a 210 cast for plinking. It puts the load at around 950 fps.
  4. NEILT

    NEILT New Member

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    Just wanted to let everyone know, I did test. and depending how you use the scoops, your load can be low by as much as 1 grain.
  5. JLA

    JLA Well-Known Member

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    All ive ever used the scoopers for is to load blanks for fun and to weigh charges on the scale.

    But as .410 said, if thats the amount of powder you actually charged with, they will be safe.
  6. 76Highboy

    76Highboy Well-Known Member Supporting Member

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    That is grest advice. Also, I have read and experienced that when you go too low on your reloads they tend to bounce back your direction. Where I rabbit hunt, it is alot of lava rock and if the bullet is moving too slow it comes back real quick and it makes you realize quickly that you need to pick the speed up immensly.
  7. 76Highboy

    76Highboy Well-Known Member Supporting Member

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    To answer your question on crimping. Buy the Lee factory crimping die. It is way easy to use. The directions are a no brainer and it does a nice job. also, you can't buldge the bottom of the brass like the standard crimping die which adds life to your brass.
  8. NEILT

    NEILT New Member

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    Thanks...I've been thinking about that. My dies leave a ridge on the brass when I crimp them.
  9. JohnTheCalifornian

    JohnTheCalifornian Member

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    Just a note. Those Lee scoops are meant to load by volume, not by weight. Lee includes the conversion so people will be able to use a scoop that is close to their desired weight. In his load books, the case capacity is listed as C.C. his scopps are labeled in C.C. It gives you an idea of how much room the powder charge will take in the case.
  10. JLA

    JLA Well-Known Member

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    Yep, and the idea is to select a load that when dipped will provide a 90% load density. At least thats where the accuracy usually is.

    The Lee dippers aint been around for 3+ decades because they didnt work..
  11. LDBennett

    LDBennett Well-Known Member

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    The dippers use to come in a set of LEE dies didn't they? I have not been reloading for three decades and I have a bunch of them.

    No matter, they are NOT the way to do it at all. All reloaders should have some kind of an accurate scale that can be regularly calibrated. Any other approach is very risky and if you do use these dippers don't stand close to me when you shoot your reloads.

    The only use in the last 25 years that I have found for these LEE dippers is for my 50BMG (actually CA legal 50DTC). I use them as small spoons to move powder from its temporary storage in a coffee mug to the pan on the digital scale. I use them because they are small and allow a lot of control as I measure the load to the nearest tenth grain (probably a wasted effort as the load is 220 grains of powder and a tenth of a grain of powder is insignificant and loading to the nearest grain is probably more than adequate, but hey that is what I do).

    LDBennett
  12. JLA

    JLA Well-Known Member

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    yeah the lee dies sets still come with the most common size dipper for that caliber.

    I do agree that it isnt the best way to do it, but I dont agree that its not the way to do it. It will make good and safe plinkin ammo with very little investment.
  13. Bindernut

    Bindernut Well-Known Member

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    Hmmm....but if using the Lee volume dippers isn't the correct way, what about all of those volumetric powder measures on the market that work on the exact same principle except have a hopper, funnel, and adjustable "dipper" built all into one unit instead of just a plastic dipper? Lyman 55, RCBS, Hornady, Dillon, etc... ?

    They all work on the same principle. You adjust the measure (or select the proper size dipper) until you get your desired charge volume.
    Preferably you're using a scale to do the final volume to weight calculation instead of the Lee chart though...the volume to weight error comes with the chart and also how consistent a person operates whatever measure they're using.

    The only problem I have with the dippers is that a lot of guys use them just with the chart and no scale. Just fine for mid-level loads but if you're near the min or max levels then you need to do some more checking to ensure you stay within those limits.

    You need to operate a "normal" powder measure with consistency just like you need to have consistent technique with a dipper. If you're inconsistent with how you fill and level the dipper you'll throw inconsistent charges. If you're inconsistent with how you operate the lever on a Lyman 55, you'll get inconsistent charges. The key is in the operation, not the equipment used.
  14. myfriendis410

    myfriendis410 Member

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    A powder measure, being a stationary tool, does not vary when the piston is actuated. As a consequence, no powder is being shaken down, no variance in the surface level etc. Using a decent powder measure with pistol powders you can deliver repeatably within + or - .1 grain. A really good rifle measure like a Redding or the Competition measure, will do the same with stick powders in rifle weights.

    I saw a video of the Army Marksmanship Unit loading .300 win mag and all they use is a measure.

    Lee dippers are NOT as repeatable as the benchtop measures.
  15. LDBennett

    LDBennett Well-Known Member

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    The LEE dippers have a few problems. There are only so many of them and to get to a specific powder weight may not be possible. They are molded plastic and MAYBE ones marked the same don't really give the same result. You have no idea unless you have a scale to check them. It is not that they can not be used but at a minimum they need to be checked for accuracy with the specific powder being used. The chart LEE provides almost always gives lighter loads than specified. LEE meant them to be used without a scale and that is not a good idea.

    I just watched a couple of "Modern Marvels" this last week on TV where they had scenes of the Army and Marine shooting teams support crew reloading for the team. One used a scale. One showed a finished round just coming off the reloading press with a fired primer in the case. The scenes were obviously staged so who knows exactly how they reload? I really don't believe everything I see on TV about guns.

    Reloading is not making a cake. Everything involved must have a decent level of precision. Using the LEE dippers without the help of a measuring scale is asking for trouble. But hey, we all get to choose. I choose safe reloading processes... scales are safe.

    LDBennett
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