This gun puts the first round nearly dead center each time. But, subsequent shots start to go all over...but mostly low. I'm thinking the barrel heating up is causing stress somewhere.
It's the carbine version with two barrel bands, the first holding the forestock in place and the second acting as the front sight and spacer between the tubular magazine and barrel end.
Any suggestions would be appreciated. I'm pretty handy, but don't know where to start.
Dan