IMR 8208 XBR is hard to beat in a 204 Ruger. I get half inch groups consistently with 35 Bergers over 28 grains and Chrono's right at 3,900 fps. 39 SBK's give me about the same accuracy over 27.6 grains and Chrono at 3,785 out of a 22" barrel in a Savage model 16. I can get a bit more speed with the same load out of Savage model 12 with 26" barrel (but only about 50 more fps). The model 12 actually shoots 40 v-max better than anything except 40 Berger's but the Berger's run a little slower with the same load, more like 3,750 fps. These loads are safe in my rifle. I don't make any claims that they would work or be safe for anyone else.