This mid 1940 rifle has an exc condion S-A 8-40 barrel with London proofs. The rifle is not original and is without the comp and keystone springs but has the round body follower. The stock was replaced too. I did find a data sheet in a early GCA newsletter that had s/n 7860 with an S-A 8-40 barrel also with London NP proofs. Are there any other S-A 8-40 barrels around with London proofs ?