Well, not happy at all with the Rem Corelok. First three shots grouped at about 3 1/2 but the next two were not even close to the first three. Group ended up being 7-8 inches which is just horrible. My brother tried the Win Platinum tips in his h&r shotgun and had four that grouped about 1 1/4 with one shot that opened group up to 2 1/4 so maybe those will be what my gun likes also. Anybody else test these out?