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4 Scale · 12-03-2018, 01:17 PM

When an empty cartridge is extracted but not ejected and is caught between the breechblock and the chamber and projects above the breechblock that is called a 'stovepipe' malfunction. In my opinion a too-strong mainspring may contribute to 'stovepipe' due to the action not fully cycling. That malfunction would not normally be caused by a too-weak mainspring.

In your first post, you say you want to change the mainspring because you 'have to cover my slide when reloading by hand". I don't understand what you mean, could you describe whatever the pistol is doing more clearly?

Before changing the mainspring consider performing a tape test, which can be found by searching the forums. The tape test will give useful information for evaluating mainspring performance.

12-03-2018, 01:17 PM	#15
4 Scale User Join Date: Nov 2014 Posts: 544 Thanks: 194 Thanked 490 Times in 251 Posts	When an empty cartridge is extracted but not ejected and is caught between the breechblock and the chamber and projects above the breechblock that is called a 'stovepipe' malfunction. In my opinion a too-strong mainspring may contribute to 'stovepipe' due to the action not fully cycling. That malfunction would not normally be caused by a too-weak mainspring. In your first post, you say you want to change the mainspring because you 'have to cover my slide when reloading by hand". I don't understand what you mean, could you describe whatever the pistol is doing more clearly? Before changing the mainspring consider performing a tape test, which can be found by searching the forums. The tape test will give useful information for evaluating mainspring performance. Last edited by 4 Scale; 12-03-2018 at 02:33 PM.