ANGCorsair, what powders have you tried with the 200s in your BLR? I've used TAC in mine that last two years but the best accuracy I've gotten with the 200s was with IMR 4064. You won't get the accuracy that other powders but you'll get some great accuracy...at least I did.
I have used IMR-3031, IMR-4064, Varget and W-748 with 200gr Hornady Interlocks, Rem PSPCL and Hornady FTX bullets. I have the 225gr bullets shooting so well now I don't think I'll look back.
I have tried TAC with 225 and 250gr bullets and velocity was excellent with no compression but accuracy was so-so. I may try them with lighter bullets as has been advised by others but I may just save the TAC for .223 loads.
