I have a Savage 12 LRPV in .223 Rem. I'm currently using R-P and Winchester brass. I'd like to seat the bullets out to about .020" off the lands. Bullets 52gr and heavier seat fine however 50 gr and lighter I have a problem The base (flat base) barely seats 1/2 way down the neck. Since I neck size I can adjust neck tension. Is this sufficient depth?