turbines
Active Member
I bought two DPMS genII LR308 rifles. one is a 24" heavy barrel and the other one is the Compact gen II hunter it has a 16" barrel.
Just after I bought them 1 year ago i wanted a better trigger with less pull weight.
I bought two Timney 667 triggers with 3lb pull weight.
Shortly after they were installed both rifles started to double fire. I couldn't use them unless they were single loaded.
Searching the net i saw where there were other shooters that had the same issue. Tried a couple of remedies that came from Timney. one was remove and make sure the triggers were dry and not to use any lube on them, the other was to check and make sure that the two screws that keep the drop in trigger secured were tight. nothing worked to make them stop double firing
Finally I contacted Timney and told them that i was having trouble and nothing seemed to stop the issue of double firing.
Even with only one round in the rifle it would still try to double fire. I know this because after the live round was discharged 50% of the time the bolt would close but when the last round is discharged the bolt should stay open.
I told Timney customer service that i thought this trigger was not up to the riggers of 308win cartridge. When I bought these triggers Timney advertised them as being compatible with the AR15 and the AR10. In fact now they do sell a trigger that is specifically for the AR10 platform.
Timney was very sincere in getting me satisfied with their product. They asked me to send them the two triggers so they could make it right. I got the two triggers back with upgrades with a heavier spring and heavier trigger. They are now the same trigger as the AR10 triggers that they sell now.
I thought the issue was finally fixed, i put the triggers in but after 10 or 11 rounds they started to double fire at the rate of 50% of the time.
Now this is where I eat some crow. I took the triggers out and put the mil surp triggers back in thinking surely it would stop but now with the mil surp triggers in place the rifles still double fire.
What in the high ho is doing this?
Could the buffer assembly be causing this? I have not done anything to the spring or weight yet. Could the buffer spring be collapsed does it need to be stretched? i don't know. On both rifles I have the A2 butt stocks that they came with and the springs have not been touched.
I have two new firing pins that i bought from dpms but i have not put those in yet the originals seem to be in good shape. those pins come as a field kit to be able to rebuild the bolt carrier group in the field or when the piston rings wear out or something gets lost.
One other point that i should make is my reloads. I use 40.0gr of IMR 4895, 155gr TMK's, Lake City brass CCI 200 primers. I don't think this load is stressing anything in the rifles.
Anyone have any suggestions or thoughts to fix this issue, all are welcome
Just after I bought them 1 year ago i wanted a better trigger with less pull weight.
I bought two Timney 667 triggers with 3lb pull weight.
Shortly after they were installed both rifles started to double fire. I couldn't use them unless they were single loaded.
Searching the net i saw where there were other shooters that had the same issue. Tried a couple of remedies that came from Timney. one was remove and make sure the triggers were dry and not to use any lube on them, the other was to check and make sure that the two screws that keep the drop in trigger secured were tight. nothing worked to make them stop double firing
Finally I contacted Timney and told them that i was having trouble and nothing seemed to stop the issue of double firing.
Even with only one round in the rifle it would still try to double fire. I know this because after the live round was discharged 50% of the time the bolt would close but when the last round is discharged the bolt should stay open.
I told Timney customer service that i thought this trigger was not up to the riggers of 308win cartridge. When I bought these triggers Timney advertised them as being compatible with the AR15 and the AR10. In fact now they do sell a trigger that is specifically for the AR10 platform.
Timney was very sincere in getting me satisfied with their product. They asked me to send them the two triggers so they could make it right. I got the two triggers back with upgrades with a heavier spring and heavier trigger. They are now the same trigger as the AR10 triggers that they sell now.
I thought the issue was finally fixed, i put the triggers in but after 10 or 11 rounds they started to double fire at the rate of 50% of the time.
Now this is where I eat some crow. I took the triggers out and put the mil surp triggers back in thinking surely it would stop but now with the mil surp triggers in place the rifles still double fire.
What in the high ho is doing this?
Could the buffer assembly be causing this? I have not done anything to the spring or weight yet. Could the buffer spring be collapsed does it need to be stretched? i don't know. On both rifles I have the A2 butt stocks that they came with and the springs have not been touched.
I have two new firing pins that i bought from dpms but i have not put those in yet the originals seem to be in good shape. those pins come as a field kit to be able to rebuild the bolt carrier group in the field or when the piston rings wear out or something gets lost.
One other point that i should make is my reloads. I use 40.0gr of IMR 4895, 155gr TMK's, Lake City brass CCI 200 primers. I don't think this load is stressing anything in the rifles.
Anyone have any suggestions or thoughts to fix this issue, all are welcome
