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I see that alot of you are using Retumbo for the 300 RUM, i have just started testing loads in my new 700 LSS.I have tried 93.0 grains Retumbo with the Barnes TSX 180 grain, seated at .040 off the lands.Seems to be a real mild load, pressure wise. Is this low on the Retumbo charge? Barnes web site shows 93.0 as max, or is it just C.Y.A. for liability reasons??? Glad to find so many people who shoot this caliber.... Thanks in advance for any help.....rsbhunter
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No the Barnes data is not CYA 93 grains with the lot of Retumbo and thier test barrel produced MAX pressure.I went to 99.5 grains with one lot of Retumbo and the 180 TXS,but the lot that I am useing now 96 grains is as high as I can go.I get 3330 fps with the 96 grain load. and accuracy is under .5 MOA....
range it,check the wind, dial in correction, aim and only one shot