I have a fairly new Pietta 1851 that probably only has about 50 rounds through it. I've noticed just recently, while fondling it, that the bolt is "unbolting" after the hammer falls.
Step 1. Cock the hammer all the way back.
Step 2. Check to make sure the cylinder in locked in place by the bolt by attempting to rotate it both directions.
Step 3. Pull the trigger.
Step 4. Observe that the bolt has unbolted and allowed the cylinder to rotate an additional 0.060" to 0.080".
I've checked the width of the bolt and the width of the cylinder slots to make sure that the bolt width is less than the cylinder slots. The hammer is hitting the nipples and this is causing the problem. I verified this by removing the nipples then dry firing without them. The problem is clearly related to the hammer hitting the nipples. I'm just a bit surprised that the force of the hammer just barely hitting the nipples is causing the bolt to unbolt. Looks like it is time to take a file to the nipples.
Anyone ever experience this problem?
Step 1. Cock the hammer all the way back.
Step 2. Check to make sure the cylinder in locked in place by the bolt by attempting to rotate it both directions.
Step 3. Pull the trigger.
Step 4. Observe that the bolt has unbolted and allowed the cylinder to rotate an additional 0.060" to 0.080".
I've checked the width of the bolt and the width of the cylinder slots to make sure that the bolt width is less than the cylinder slots. The hammer is hitting the nipples and this is causing the problem. I verified this by removing the nipples then dry firing without them. The problem is clearly related to the hammer hitting the nipples. I'm just a bit surprised that the force of the hammer just barely hitting the nipples is causing the bolt to unbolt. Looks like it is time to take a file to the nipples.
Anyone ever experience this problem?