777 primers aren't as powerful as Rem's KB primers, but they are definitely cleaner. Much easier to clean the breech plug with them. Just try them in your gun and see how they shoot. They may be an easy alternative to vari-flame adapters.

KB primer crud:

http://i42.photobucket.com/albums/e317/rem700custom/IMG_0004.jpg

777 primer crud:

http://i42.photobucket.com/albums/e3...m/IMG_0001.jpg