THe Nosler Ballistic tip bullet is what is used in the Win Supreme Silver tip ammo. Nosler is a company. The make Partitions bullets which are a great design(a little pricey though) The Accubonds which look like a ballistic tip but are a bonded bullet and ballistic tips. The Hornady SST are also plastic tipped bullets that look and perform alot like the ballistic tip.

The Winchester Supreme Silver tips are pretty much the Nosler Ballistic tip with a Lubralox coating(the black on the bullet) that works sorta but not really like Moly coating.

www.nosler.comgo here and check out the differences.

Honestly though if I didnt reload and the Regular Rem Core-lokts or Win PSP stuff shot good out of my gun I prob wouldnt feel the need to go with the more expensive stuff(for whitetails). If you want a good quality factory ammo check out Black Hills ammo. They make some great stuff and unless itsa premium bullet load they arent that expensive but you usually have to order it. Their 223 ammo is all I use out of my 223 because it shoots so good.