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41 Magnum Load Data?

Discussion in 'Handloading and Reloading' started by ObsidianOne, Feb 28, 2013.

  1. ObsidianOne

    ObsidianOne Well-Known Member

    I'm looking for some specific load data for a few different types of bullets and was wondering if someone might be able to point me in the right direction, as I haven't had any luck finding them :(
    I'm using Unique powder and would prefer to use it, but am planning on getting some 2400, as I heard it's great for .41 mag and .357.

    Here are the bullets that I have:

    210 gr SWC (gas checked) .410"
    215 gr RFN .410"
    220 gr TC (gas checked) .410"

    All three are lead, never loaded lead, or 41 magnum, just Berry's Bullets for 9mm :) Any info would be greatly appreciated.
  2. foxs

    foxs Well-Known Member

    I use 18 grain of 2400 for hornady 210 xtp. Have not done any cast yet
  3. TwoEyedJack

    TwoEyedJack Well-Known Member

    My favorite mid-range load is 11 gr. of AA#5 under a 210 gr. cast bullet. It has enough recoil to be interesting. For heavy loads, there is nothing like H110/Win296. Here is a couple of links for load data.



    I have not worked with gas-checked projectiles before, but I understand they can be driven about as fast as jacketed, depending on the smoothness of your barrel and the quality of the lube. YMMV.
  4. zxcvbob

    zxcvbob Well-Known Member

    I haven't done much with .41 Mag yet, but the one load I have is 9.0 grains of Rex-3 powder with a 210 grain SWC cast bullet. Rex-3 is pretty close to Universal Clays, so about 9.5 grains of Unique would also be close -- and you should be able to use that with either 210 or 215 grain bullets. This is a kind of mid-range load, but the pressure is actually pretty high because of the powder burn rate.

    I would start with 8.5 or 9 grains of Unique and that plain-based 215 and see how it goes.
  5. dap22

    dap22 Well-Known Member

    Using 2400 with a 215G cast bullet, I use 15.0G and a non-magnum primer. Perfect plinking round. For Unique, I've used 8.0G with a LP primer. Don't recollect nor recorded how it works. Shot it so I guess it worked OK. My feeling is that while Unique is fine, 2400 is the best for that caliber.
  6. ObsidianOne

    ObsidianOne Well-Known Member

    Yeah, I want to get a hold of some 2400, problem is, the LGS are all dried up on powder.
    Appreciate the responses, keep them coming if you got them guys!
  7. Nevmavrick

    Nevmavrick Well-Known Member

    When using Unique, 7.0 to 9.0 should be fine, and plenty safe. I've run a ton of both RCBS 210 SWCs and Lyman 215 SWCGCs through my Ruger BH, and S&W M57 and M58s. I also use the HP equivalent with Unique.
    When I want some thing with a little more "oomph," I go to 18.0-19.0gr of 2400.
    I use almost any standard LPP with either...there's no reason for a Magnum primer. (except ya can't find any!)
    Where do you get GCs? Make your own? From aluminum?
    My guess is you're buying bullets, not casting them. Is that why you're using .410 cast bullets?
    I've used a bunch of commercial-cast, but have much better luck casting my own and sizing the to .413". "Fit is king," and it cuts way down on leading the bore. When using the mid-range (Unique) loads, a medium-hard bullet such as Lyman #2, or WW+2%tin, doesn't need a gc. A hard, like linotype, bullet will more likely lead your barrel.
    The hard bullet will prolly work well with the more "magnumized" load, but the larger-size is the better idea.
    I like Blue Dot, but use 2400 just fine. Hmmm, Alliant. Maybe they've got somethin' goin'.
    Have fun,
  8. Loc n Load

    Loc n Load Well-Known Member

    41 magnum

    I have loaded and shot the 41 mag since the 70's.....I use Unique in my magnums - 357's, 41's and 44's and 45 LC if it is a 4" or shorter barrel. You can load some very potent loads with Unique and not have the enormous muzzle flash that you have with the 2400. In longer barrels I run 2400. I have shot thousands of rounds through my magnums in the past 40 years, training, hunting, competing, etc. I go with the heavier weight hard cast SWC's for most loads and use the JHP's in the longer barrel guns for full power hunting loads. Unique and 2400 will serve you well.
  9. Bush Pilot

    Bush Pilot Well-Known Member

    You're sizing to .413? Curious, where are you at for hardness?
  10. Hanshi

    Hanshi Well-Known Member

    I've found 18 grns of 2400 under a 220grn swc to be a real barn burner. For the Hornady 210grn hp I use enough Blue Dot to get "true" factory ballistics.
  11. Nevmavrick

    Nevmavrick Well-Known Member

    Depending on what I'm trying to accomplish, the hardness can go anywhere from about 10-12 to 15-18.
    If I'm shooting an HP for hunting, I might use an alloy of about 94/2/4(tin) to get about 10 Brinell. I would then load about 10.0-11.6gr Herco for 1260fps from my M57 6".
    I might load 19.0gr of VVN110, for almost 1400fps with an RCBS 210gr SWC from linotype to shoot paper at 100yds (or AT that paper, lol) The hardness, then, would be about 18-22 Brinell.
    413" may not be the right size for YOUR gun, but I'll bet it's close.
    Have fun,
  12. ObsidianOne

    ObsidianOne Well-Known Member

    Nevmaverick, yes, I buy them from a guy in Phoenix by the name of Leadman, he has some pretty decent prices.
    Unfortunately his prices recently had to go up though :(

    Loc n Load, do you happen to have any load data for Unique for those sized bullets? :)
    I'm running this in a Ruger Super Redhawk.

    I've never loaded for revolvers before, is OAL as important and if so, what should my OAL be?
  13. 41 Mag

    41 Mag Well-Known Member

    My good friend and I have been playing with some 41 loads off and on for the past few months. Using our own cast bullets, which are similar to the original Keith types and we are using Unigue, 2400, Accurate #5,7,& 9. Orimers have been Wolf, Win, Rem, and CCI all in the LP flavors. Suprising to us was the primer hasn't had as much impact on the loads as we thought they might.

    This said we have worked up a few using similar weight jacketed loads beginning our from the start data and working up slowly. When we set out working on these we decided that the 1000 - 1250fps range was our criteria for velocity with accuracy being top. Most of the best loads have been hitting right in between those areas.
  14. ObsidianOne

    ObsidianOne Well-Known Member

    What loads have you been using for Unique and what size is the bullet?
  15. 41 Mag

    41 Mag Well-Known Member

    You could probably use the same data for similar type bullets. We are using our own cast version of the HG 258 thrown from a MP mold. That particular is the MP-41 HG 258 which were still available as of the 26 of Feb. This particular mold comes with two HP pins and a blank so you can cast three different nose types. The solid nose bullets we are pouring vary a little depending on the alloy but usually come out in the 220gr range. The HP's run between 210 and 215 depending on which pin or alloy is used. You can find more on them here,

    If your interested in picking one up you can contact MiHec from his website here, MP Molds

    Don't let the price scare you away, they are worth it. Also if your not interested in pouring the HP's ask about the pricing on the straight SWC version with no pins, or with just the blank pins. Might be a bit cheaper that way. The way I look at them is, I can always just pour the solids, but with a little extra, I have other options as well from the same mold. If you go with the HP pins and want to get good expansion without breaking off the noses, stick with an alloy somewhere in between a 25-1 and 10-1. My bud has also gotten some good result with just plain range lead as well.

    With Unique start around 8.5grs and work up until you hit accuracy or stop when you get to around 10.5grs. Most of the chrono'ed loads are running just over 1050fps and from resting my forearms across a sand bag with open sights will groups around an inch at 25-50yds depending on how well I am doing.

    If you have some AA-7 I am using around 13grs with these same bullets cast from 1/3/96 alloy and they shoot wonderfully. They pop out of the mold around .411-412" and I run them all through a Lee .411 sizer and lube with the alox blend 45/45/10.

    Hope this helps, and if your looking for a mold to pour your own thee are also a couple of open group buys at CB's going on right now for a Lite 41 and a 640 version both for the 41.
    Last edited: Mar 10, 2013

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