I have been reloading for a few years and read as much as I can regarding loading for many different rifles. It seems to me that pretty much no matter what cartridge or game species (short of dangerous game), there is an interlock that suits the need very well. From 6mm to 35 caliber and everywhere in between they have an offering that not only seems to be cost effective but accurate and reliable as well. I have purchased many nosler bullets from SPS and on sale and I have them on my shelf still but I am starting to think I should have a lot more of the little red boxes on there as well. Who knows what the election will bring as far as guns and ammo are concerned. I am thinking I should stock up on some of the interlocks to feed my habits in case buying ammo starts to get more difficult. Anyone else really like the interlocks?