I know, I know, 2400 or even stuff as fast as unique would be preferable but I live way down south (we still fly the Union Jack here). There is no fast burning powder at the moment and I am reluctant to use my Trailboss stash as I need it to run my 38 PPC load with it. This makes paper punching with cast boolits very hard.
I managed to secure 2 lb of Reloader-7 but manufacturer lists almost no data on its website (all light for caliber J-word boolits). I am not familiar with RX-7 and I have never tried reduced load with something this slow before, I am actually a little nervous.
I have found some data on Lyman 48th edition for the usual stuff but no 6.5X52. So I looked at 6.5x55, it lists 15-27gr RX7 for Lyman 266469 140gr. Considering the case capacity is 49gr for 6.5*52 and 58gr for 6.5*55, I just multiply the rage with a factor of 0.84 and got 12.7-22.8. Give it a large safety margin of 3 gr either way, I still get 15.7-19.8gr to play with.
Do you guys think it is about right? Or am I missing something?
Also, the data is 20 years old, I believe RX7 was made by another company before, were there significant differences then and now?
And would a filler such as dacron be required for reduced load using RX7?
Also calculated about 29 gr for 7.62*54R, 308W and 303Brith, 31gr for 30-06, all with 180 cast boolits, 27.5 gr for 8*57 with 190gr boolit, do they sound about right?
Any comments and advise appreciated