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Thread: Power Pro 300 MP as SR 4759 replacement

  1. #21
    Boolit Master
    oldblinddog's Avatar
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    Same load at 100 yds:
    Attachment 198931
    USMC 6638

  2. #22
    Boolit Buddy Silicon Wolverine's Avatar
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    any further testing on this? im an alliant junkie and use 300MP in handguns, but hadnt thought of it as a rifle powder. Usually IME ball powder doesnt like reduced rifle loads. im going ot try some of the 23 gr loads in 308 with a lee 170 gr and see how it goes out of my ishapore this week.
    A large volume of adventures may be grasped within this little span of life, by him who interests his heart in everything. - Laurence Sterne

  3. #23
    Boolit Master

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    I've been using it in my two 32-40's with great success. I'll have to try and work up a load for the 38-55 also, but first I'll have to order up an 8 pound jug of it.

  4. #24
    Boolit Master Oklahoma Rebel's Avatar
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    I amm also interested in how well 300mp does in the 44 magnum 260gr-300gr range
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

  5. #25
    Boolit Master

    Rattlesnake Charlie's Avatar
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    I thought MP 300 was Alliant's response to H-110 and 296. Interesting to see it can be used in reduced loads as H-110 and 296 cannot.

  6. #26
    Boolit Buddy Silicon Wolverine's Avatar
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    fired a few loaded at 23 grs today. two were totally normal, one had some primer flatteneing but no other pressure signs. this weekend might do a 25 round test if time allows
    A large volume of adventures may be grasped within this little span of life, by him who interests his heart in everything. - Laurence Sterne

  7. #27
    Boolit Buddy Silicon Wolverine's Avatar
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    did soem shooting today. accuracy is on par with regualr ammo out of my 2A1 ishapore at 50 meters. 100 it opens up a bit but still good plinking ammo for 14 cents a shot
    A large volume of adventures may be grasped within this little span of life, by him who interests his heart in everything. - Laurence Sterne

  8. #28
    Boolit Master Oklahoma Rebel's Avatar
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    anyone else use it in the 44 mag?
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

  9. #29
    Boolit Buddy
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    Accurate 5744 if you can find it not as bulky as SR4759 but a great powder that fits the bill for almost all cast loads. Not position sensitive and fast burn rate like SR4759. can be used from 222 through 45/70 with good to great results. Anybody in OK or KS Powder Valley in Winfield KS has it for 28.95 per pound in stock

  10. #30
    Boolit Buddy Silicon Wolverine's Avatar
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    accurate powders here are 34-39$ a pound on average
    A large volume of adventures may be grasped within this little span of life, by him who interests his heart in everything. - Laurence Sterne

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check