RMR Bullets Home › Forum › General Reloading Discussion › Load Data for 55g JSP using IMR 4064 › Reply To: Load Data for 55g JSP using IMR 4064
September 17, 2025 at 11:32 am
#538083
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I also have some extra 4064 but couldnt find data for lighter bullets, so For around 15cents a bullet I bought 1000 RMR 69 hps. Loaded them with 24.24 grains 4064, 2.255 col. They shoot good outa 18\” 1:8 upper
