It's time to go to the x-perts. Ihave seen/read/heard several examples of 1500+fps from a 50 cal.RB and so far I have not come close to this. Iam shooting a Lymans Great Plains--50 cal---CCI Mag#11's--Hornady .490--.015 patch and Am. Pioneer 2F. Being a true believer of shot placement vs. speed I don't need stupid fast but I want as fast as I can get and still punch the black at 75 yds+.I have chronographed 80, 90 and 100gr and have topped out just over 1200fps. This is with the chrono at the 25 yd burm to avoid the patch/smoke. Accuracy is a consistant 2" at 50 yds but opens up to 6+ at 75. !!???? This is with 90gr. 100gr is worse. I have many more ???'s but lets start here. Why the lack of velocity? The end result being a deer load out to at least 75yds. My old timey eyes can't see much past that anyway. Thank you in advance for any advice you can give.