In the 1960s and 70s Remington made the Core-Lokts with very good thick jackets. They were excellent for the most part. I used them in 270 150 grain, 30 cal in 150, 180 and 220 round noses, a batch or 200 grain 35 calibers as well as .375 270 grain round nose. I also shot many of them in the 150 grain and 180 grain 30 cal spitzers.
All were good but the round noses were the best.
