.243 AI 105 Berger Retumbo Powder?

[Greg Duerr]

I found some Retumbo Powder and started working up a load in my .243 AI...... Im shooting the Berger 105
I have a 26" 1x8 Broughton Barrel. I used Fed 210 Primers and started out with 49.0gr.........................and worked up to 52gr.......

49.0 3026 fps

50.0 3127

50.5 3223

51.0 3246

51.5 3282

52.0 3316

Primer pockets were still snug

I will do an accuracy test Saturday Morning....................

Does anyone have any experiance using Retumbo in there .243 AI Shooting the 105's

 

[IdahoCTD]

I shoot 51grs with a 105 Amax at 3280fps. It's a sub 1/2" 5 shot group load in my rechambered 243win barrel and closer to 1/4" in my Bartlein barreled rifle. I shoot Lapua brass.

 

[ZSteinle]

i use retumbo in my 6mm-284. Pretty close to the same. 54gr. 105 berger at 3280