If there is a VCRT of 7.62mm (0.3in) fn mag 60-20 machine gun, what is the VCTP of that?
CREATE TABLE "tam_variants" (
  "vctp" text,
  "vca_155" text,
  "vctm" text,
  "vcpc" text,
  "vclc" text,
  "vcrt" text
);
SELECT "vctp" FROM "tam_variants" WHERE "vcrt"='7.62mm (0.3in) fn mag 60-20 machine gun';