Thanks for all the great advise. I do understand that I will be doing alot of testing this summer . I should have posted that I got a Browning silver slug gun for Christmas last year from my wife. It has a 1 in 28 twist rifled barrel. I have topped it off a Zeiss 3.5x10 scope. I will be testing the Winchester platinum tips, lightfields, and I probably two other brands I hope will shoot well. The other side to slug hunting is terminal performance. Accuracy is the importian but poking holes in deer is something I will avoid at any cost.