Thread: .22TCM Micro Varmint rifle build

Originally Posted by Wingman

So after some promising results with H110 I shot into town to pick up some Lilgun as Ive read its the go to powder in hornet at the moment and found some mentions on forums of guys using it to load for their TCM pistols.

I looked up Hodgdons data for Lilgun in .22 K hornet as I did for H110 and got the min load of 12.5gr and a max load of 13.5gr. I dropped 12.5gr in and headed out to the chrono... then all hell broke loose.. 3328fps





I thought all was well as it was a light starter load according to Hodgdons Hornet data and I didnt even know it had blown a primer pocket until I lifted the sticky bolt. The pocket has stretched big enough to fit a large rifle primer! The tough little Mauser action did its job perfectly and vented the gas through the actions relief hole and I could trace the sooty gas trail across the various steps and machined faces designed to keep the shooter safe in a burst primer scenario such as this.
I cant quite work that one out as H110's pressures and velocities aligned perfectly with their data but will try again tomorrow from a start load of 10gr of lilgun.

I had that once man it gives you the shits, had loaded up 100 rounds of 308 for a competition, and went out to practice the day before. Fire five shots all good but I decide to do a few more though. Carry on then wham, puff of gas in the face and bolt wont open. Go home, get it open but the case still there, primer smeared all over bolt and action. Turned out Id mixed rifle and pistol primers in the hand primer. Rapid bullet pulling , depriming and reloading till the wee hours. Neednt have bothered got horribly outclassed and finished just about last as I was still uncertain about the ammo.