CREATE TABLE "comparison_of_service_rifles" (
  "nation" text,
  "model" text,
  "length" text,
  "barrel_length" text,
  "weight" text
);

Question: What is Nation, when Model is M1895 & M1897 Carbine?
SQL: SELECT "nation" FROM "comparison_of_service_rifles" WHERE "model"='m1895 & m1897 carbine';

Question: What is Weight, when Length is 1168mm / 46 in?
SQL: SELECT "weight" FROM "comparison_of_service_rifles" WHERE "length"='1168mm / 46 in';

Question: What is Length, when Barrel Length is 750mm / 29.5 in?
SQL: SELECT "length" FROM "comparison_of_service_rifles" WHERE "barrel_length"='750mm / 29.5 in';