223 SR4749 reduced Loads?

je2140

May 27, 2006 11:04

Anybody have any experience with SR4759 reduced load in 223 with 55 FMJ for use in AR15?

My Speer manual lists reduced loads for SR4759 for 222 and I don't see why something similar cannot be used in 223

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  temblor

  May 27, 2006 13:53

  I've never loaded SR4759 in the 223, but the IMR loading guide lists 17.5 grs of SR4759 with the 45gr Sierra sp bullet ( the only load - listed as max.) at 3040 fps with a 24" bbl.. Nothing listed for 55gr FMJ.
  I have loaded XMP5744 in the 223 Remington with reduced loads with good results in a bolt action ( around 2000 -2100 fps depending on bullet weight ) but don't know how it would work in the AR15 action. Pretty much duplicates 22 magnum rimfire ballistics.
  XMP5744 load data is listed in the Speer #13 Manual.
  
  Thought I'd add that Hodgdon Powder Co. used to have a section on reduced loads on their website ( www.hodgdon.com ). You might check there to see if they have another powder that might serve your purposes.......good luck....[^]

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