Hey guys! I'm new to the forum and new to reloading the 10mm. I just got 2,000 remington LPP and 1 lb of Accurate No. 7 from a friend of a friend for cheap ($30.00 and a fishing trip ) I already have 1lb of blue dot and all the necessary tools / dies.. Right now I'm going to be reloading with 1x fired remington brass (waiting for 1000 starlines to be shipped) All the recipes I can find for blue dot and #7 call for federal or cci LPP. I found some recipies for 800-x with remington LPP but it seems most of you guys prefer mag primers for 800-x.....??? My question is if I back off a bit on the powder and SLOWLY work my way up, will it make that big of a difference if I use a remington LPP vs. a CCI or federal? I'd rather be safe than sorry. I'll be using 180 and 200 gr. JHP out of a G20 w/ a 22lb recoil spring. THANKS!