Re: Norma powder for 270win. 204 or MRP
It is true, RL22 is leftovers that did not meet the standards to be labeled as MRP, 205 was so close to MRP that there wasn't any sense in keeping both. MRP2 is also a "high quality" RL25, 217 is not a replacement for MRP2, test have shown 217 to be slower than Retumbo, right on par with VV N170 but not quite as slow as N570. Norma 204 is RL19 without the "bad" characteristics of 19, it's a good powder for 130s in a 270 win, but for 140s and up MRP is a better choice. PP4000MR is basically a reformulation of the ball powder we know as Ramshot Hunter just in a smashed extruded form. Personally I'd look for some H4831sc, but that's just me. Good luck.