In the past I had shot 100 grains (2 50 grain pellets). Last year I went to the magnum load, 3 50 grain pellets. The accuracy was about the same, it was jumping around but the pattern was about as tight once I made a minor scope adjustment.

As for the breech plug, it is brand new.

If I end up determining it is a scope issue what is a decent made scope that won't break the bank. Probably a $200.00 or less budget since I just bought a new crossbow. I would like to stay closer to $150.00.