For anyone that has fired or has knowledge of both systems. Its sounds like the SRs uses a similar system tot he blaser design in that the barrel/extension locks into a sotck with two(sig) or four(SRS) bolts. The bolt then locks directly into the barrel extension meaning no receiver to mate the two. IF this thinking is correct I am much mroe inetrested in the SRS as the blasers I have fired were all lights out accurate. The only difference I see is that the blaser scope mounts directly to the barrel where the SRS mounts to the stock. Would this allow for loss of any repeatability when chaning and reinstalling barrels? i know it would be minimal if any at all.