View Full Version : Calico m100 22lr

11-04-2012, 6:40 AM
Can anyone tell me why I'm getting 2-3 round burst on my calico m100?
I've had this gun for 25 years, and it used to shoot flawlessly. Then my firing pin broke, so I replaced the following bolt parts: Firing Pin, Spring, Stop pin, Bolt handle Pin, Extractor, Extractor Spring and Recoil buffer (the new recoil buffer is much softer than the original). The only part I didn't change is the recoil spring, but it seems fine.
When shooting the rifle will randomly fire 2-3 and sometimes 4 round burst at lightening fast speed, then misfeed or jam. It is quite scary. I keep the gun extremely clean and lightly oil the bolt.
I'm using CCI 40 grain mini-mag solid points. Also use the CCI blazer 40 grain solids.

11-07-2012, 3:17 PM

11-08-2012, 6:43 AM
Is the firing pin to long? Put in an empty case and drop the bolt. If it's dinging the case, that may be your problem.