Originally Posted by SigFTW
I talked to the gunsmith at RIA again and he insist that a heavier spring, heavier than 16# would not work in the RIA 1911 10mm, He tried that out himself. I asked about the Colt Delta Elite 10mm using a 20+lb spring and he said because they had feed issues. He also said to add a shock buffer by WC, this will help.
The only was to verify the claim by the RIA 10mm GS is to put it through the test. I will let y'all know what I find out when the springs come in. The 16# will be here Monday or Tuesday, I'll order a 20 and 21lb Monday.
The only real significant difference between the RIA and Delta Elite I can think of would be the heavier barrel in the RIA. Back in the early days of IPSC when we first started using bull barrels with simple compensators we found we had to go to a lighter recoil spring for 100% functioning. Still the 14lb recommended by RIA seems light to me. Please keep us informed.