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Thread: 325 WSM Loads

  1. #1
    Member cohlp's Avatar
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    Default 325 WSM Loads

    Anyone have input on their accurate loads or good powders/primers to start with. I am shooting them through a Browning Mtn Ti.

    Thanks

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    Default .325 accuracy load

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    I posted this a couple years ago:

    Well, life finally slowed down enough for me to get to the range with my first handloads for my 325wsm. Been a long time comin! What fun it is to shoot your own ammo! My Kimber likes these 220gr Gamekings. I loaded them with IMR 4007 SSC, once fired nickel plated winchester brass trimmed, WLRM primers and .023 off the lands. I loaded, 58gr, 60gr and 61.7gr.

    Here are the first 5 shots at 100yds. 58gr powder, starting load. Avg mv 2580fps for 5 shots.


    At 60gr 3 shot group opened up a little. Still no bad pressure signs.
    (no picture)

    I then shot the max loads 61.7gr and after settling down shot this 4 shot group. Avg mv 2738 for 7 shots.



    No pressure signs, primers looked good. Extraction at the max loads felt less stiff than factory loaded 200gr Accubonds. The load data says 61.7gr max load is just over 60,000psi. SAAMI specs are 65,000psi max. I'd like to get 2800fps out of these 220's if I can. There is still room for more powder in the case. Would I be a fool to try 62.5gr or 63gr?

    I chronied 3 of the factory load 200gr AB's at 2940, 2937, 2918. That's out of my 23" barrel Kimber, chrony about 10 ft from the muzzle. Winchester specs say 2950fps mv. I guess that's pretty darn close.

    For any of you 325 owners out there. I spoke with Sierra about the 220 GK's and they were made for the 8mm Mag. They have thicker jackets than most other GameKings, I guess the 338 225's are the same also. With the high BC this should be a great long range moose round.

    ~~~~~~~~~~~~~~~~~~~~~

    Here's what I ended up with last summer. Shot a griz with this load last fall. 220gr Sierra GameKing, 63gr IMR 4007 SSC, WLRM and/or CCI Mag primer.

    Last edited by Snyd; 12-28-2010 at 18:40.

  4. #4

    Default 325 load

    2800 for the 220g bullet is pretty good specially when you can group them like that. Thats a great AK big game load. How did the GKs do in the bear?
    Did you recover any?

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    Complete pass throughs on the griz as to be expected, busted up sholder and spine. 165yds. I hunt moose in the high country and figured this would be a good load for long shots. Stid has been working up loads for the 325 wizbang. I don't know what he's got yet. I'll be working on 200gr Accubonds this spring.

  6. #6
    Moderator stid2677's Avatar
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    I got my 325WSM shooting pretty good. Still need to tweak my loads just a little. Also got some 220gr Sierras and Aframes to try. I had the best luck with H4350 pushing my 200gr Accubonds.



    Good Luck and be safe.

    Steve

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    Nice group. Have you shot any factory Accubond loads? They chrony at just under 2950 in my Kimber and shoot sub moa. I hope to be able to get close to that. I've got just under 2800fps with IMR 4007 SSC with the 220gr GameKings. A 220gr A-Frame at 2800 would be good thumper. I haven't tried any of those yet. I did load some 180 TSX's to about 3100 I think it was. I'd have to check my notes. But it seemed that in 3 shot groups I alway had one BAD flyer. I mean like a 6 or 8 inch flyer at 100yds. I'd rather shoot the 200gr AB's. I haven't tried Partitions yet but I do have some 200's.

    maybe we should move these posts to the new 325 load thread?

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    Moderator stid2677's Avatar
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    Very nice Snyd, Thanks for the data. I have tried several loads with the 200 grainers. Going to start on the 220s next week. Great looking groups you got.

    Check this thread for some 200 grain info.
    http://forums.outdoorsdirectory.com/...t=71932&page=2

    Steve

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    Sure you can move these if you like. Where did you buy the IMR 4007 SSC??? Might try that with my 220s. My Accubond load could be pushed a little harder and should also tighten up with fired formed brass, those groups were with virgin brass.

    Steve

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    Quote Originally Posted by stid2677 View Post
    Sure you can move these if you like. Where did you buy the IMR 4007 SSC??? Might try that with my 220s. My Accubond load could be pushed a little harder and should also tighten up with fired formed brass, those groups were with virgin brass.

    Steve
    I got the 4007 SSC at SW before the Obama freak out last year. I saw some recently around town. Either there or at Frontier. If you can't find any and want to try some shoot me a pm.

  11. #11
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    Worked up a test run using MagPro to push 220gr Swift A-Frames. Started at 60 grains and worked up .5 to 70. Going to shoot and chrono them as soon as the weather gets better.
    Going to also try some 220 Gamekings with your recipe Synd.

    Will post a range report when I get a chance to fire them.

    Steve

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    Cool, careful with the 4007 SSC load. It is "max +" but the brass extracts easier than factory 200 loads. Primers look ok. This is in my Kimber.

    I was going to let you know I was just in Frontier and they have 4007 SSC there. But, it sounds like you got some.

    I've been spending my winter working on my 45 Colts and 454 levergun and 38's. I really want to get a blackie over bait with my 45 Colt BisHunter and use it for moose this year also. I never have bear baited but "how hard can it be?!"

    Maybe I'll start on some more 325 loads this weekend. I need to get it into Sheep Shape

  13. #13
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    Please use published data, these reloads only safe in the rifle in which they were developed.

    Took advantage of the wonderful day we had in the Fairbanks area and headed out to my favorite out of the way range. I'm working on 220 grain loads and loaded up some Swift A-frames and Sierra Game Kings. Tried Magpro powder to push the A-frames and R-22 and IMR 4007-SSC. All bullets were seated to .005 from the lands. Was a sunny day and clear skies. Had the range to myself the entire day. Was splendid until I realized as I got ready to leave that I had left my headlights on and my battery was doorknob dead. I'm sure you can relate that my wife was displeased to have to come rescue my. Also served as a reminder for me to outfit my new truck with the roadside necessities. It all worked out in the end. Back to the range report.

    All rounds fired at 100yds with Winchester Model 70 325WSM 24 inch barrel.

    My method was to load one round starting at my min load and go up half a grain, load another and so on to the max load.

    At the range I would fire a round and go down and mark it. This allowed me to keep track of the hits and to allow the barrel to complete cool between rounds.

    I started with the Magpro powder and Swift A-frame 220 grain bullets.

    These loads were very showed great promise in the 60.5gr to 63.5gr range with Velocities from 2505 to 2555.


    This next target shows the groups as the loads got hotter. Here it looks like the

    65gr to 66gr shot close together, shots 10,11,18 With velocity at 2554,2646,2659fps

    And on the high side 69gr to 70gr, shots 14, 15, 16 With velocity at 2765,2801,2805fps


    Next was the Reloader 22 and the Sierra 220 Game Kings.


    The last combo I tried was the IMR 4007-SSC with the 220 Game Kings.


    I'm going to next reload 3 rounds in different powder ranges and see how they groups.

    Thoughts and recommendations welcomed.

    Steve

  14. #14
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    Quote Originally Posted by stid2677 View Post
    Thoughts and recommendations welcomed.

    Steve
    Thanks for taking the time to post Steve. I'd sure like to see the 220 A-Frame with 4007 SSC. If a guy get could about 2800fps and sub moa at 100yds that would be the ticket for big hard boned critters. But, that 220gr GK load you have there with the 4007 SSC is a great load. That big long boat tail has a high BC and holds quite a bit of energy over 300yds when launched at 2800fps. At least according to Hornadys online ballistic calculator. It's my "high country long range" moose load. It should be a solid killer out at 400yds. It's very close to the ol' Big 8 with prolly about half the recoil

  15. #15
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    Using my Iphone ballistic calculator, which is a great app by the way, shows that 4007-SSC/Game king loaded at max, load of 61.7gr pushes the 220gr Game King at 2902 velocity. With this load zeroed at 200 yards my drop charts shows -6.93 @ 300 yards, -19.97 @400, -40.04 @500 yards. Even @ 500 yards this loads still has 2097lbs of energy.


    The MagPro/Swift A-frame load based on the Velocity of my max load would be.
    70grs of Magpro with 220 A-frame. Velocity 2805fps. With a 200 yard zero drop chart shows,
    -8.14 @300 Yards, -23.85 @400 Yards and -48.76 @500 Yards, with 1512lb of energy.

    Might have to try the IMR 4007-SSC with the A-Frames, could not find any published data for that combo. I do a swift reloading manual on the way.

    Steve

  16. #16
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    Got my swift reload manual today. I was bummed out to say the least to find no 325WSM data in it. So I called Swift and spoke to the Ballistic Tech and he provided me with some data for the 220 gr Swift A-frames for 325 WSM.

    IMR 4831 max load of 66.5 (always work up) With expected velocity of 2706fps

    IMR 4007-SSC max load of 66gr (always work up) With expected velocity of 2778fps

    Will try the bottom one for sure.

    Steve

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    This thread has got me all excited now to work up a load with the 200gr Accubonds. I'm down to like 10 factory rounds. I still think that 200gr AB with it's high BC at 2940-2950 fps hits the sweet spot for accuracy, speed, energy, trajectory, etc. I've got some H4350 and the 4007 SSC I'll try. Steve, that 200gr AB load with 62.5gr H4350, how close to max is that?

  18. #18
    Moderator stid2677's Avatar
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    Check this link for load data Snyd. Good luck maybe we can hit the range together next week.

    http://www.nosler.com/index.php?p=15&b=8mm&s=61
    Steve

  19. #19

    Default 200 AB load

    I am using 62.5 grains of IMR 4350 with a Winchester std. primer.
    It is what my Kimber likes, .5 grain either way and the accuracy suffers.

    BTW- it is getting towards max. in my gun
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  20. #20
    Moderator stid2677's Avatar
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    Went to the range and shot my IMR 4007 SSC and 220g Swift A-frame test loads. I reached max at 66g as bolt lift was stiff. I'm going to loads some to 64.5 and shoot again.


    Steve

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