hazy7,

Winchester dont have any CZ527s in stock unless you are a lefty...they dont even have any CZ452s or 455s in stock...lucky you found a 2nd hand one.

Steve

I've used BM8208 in my 204...I just used the load that was in a write up in one of our local gun magazines...cant remember which mag...the load he used was 27.5gns with a 40gn projectile...it was chronographed at 3750fps..,I've used that load to shoot rabbits out to 485yds with a 40g Berger...it see...

My main tests will be the Sierra against the Hornady...loaded to the same velocity and zeroed at 100y then shoot at 550y to see what the trajectory difference will be...JBM ballistics shows the difference to be less then 1/2" in favor of the Hornady at 500y...haven't finished load development w...

ClaimJumper, i agree a higher BC will shoot flatter....since you are the mathematician here work it out with your formula and show me us your results...I'm not the sharpest tack in the box but when I put a 39g Sierra, 40g Hornady and a 50g Berger side by side i cant believe what Sierra says their BC...

ClaimJumper,

Think about it for a while...how can a 39g projectile have a BC higher then a 50g projectile of the same calibre....same with the 40g Hornady...a much longer projectile then the Sierra...i think you'll find Sierra's BC is based on theory not fact.

Steve