BM3 +Shockwave 300s from an Omega
I am a newbie ML shooter so I thought I'd ask for some help. I have an Omega and would like to shoot BM3 and Shockwaves. I heard that Shockwaves give better accuracy than Powerbelts, so I thought I'd try them first. I spoke with Customer Service at T/C and was told that they initially got a bad batch of Shockwaves (hard to load), but have since corrected the problem (the ring on the basecup is the indicator for the bad sabot according to T/C). With a 300 grain Shockwave, what should I use for a starting charge of BM3? I'm planning a Montana deer hunt in the fall and wish to set the gun up to make 200 yard shots. Should I switch to 250 grain instead of 300 grain bullets? I thought that with the heavier bullet, I'd have better killing power at the 200+ yard distance.