Thread: Who's seen a rimfire do this before

2nd hand purchased 17hmr shooting Hornady 17gr Vmax

Started sighting in at 30 yards, then when things seemed to be a little odd I moved even closer to just 12 yards! Yes that 3 shot group was shot at 12 yards LoL

I thought the impacts sounded a bit different. And the bullet holes didn't look right thru the scope.

Went up to look at the target and couldn't believe what I was seeing!

She's well fooled!

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baffle strike???? or was it a bare muzzle???

heck even riflingless it shouldnt be that bad!!!!

Wrong roll Mark on barrel
It's really a 22 HMR and you were using the wrong caliber ammo

Yeah, but some idiot had used it for fishing and tried to point blank the fish by putting the muzzle on them. It flared the barrel and the muzzle and bulged it so the barrel looked like a roof roller for corrugated iron. I dunno how it didn't kill the clown to be honest, it was well stuffed. One of the asian knockoffs of a BRNO design I think, not stirling but a similar style? Either way something isn't right with that thing, I wouldn't even try to stick anything else down it until the headspace and barrel state are checked.

I've seen this on an old 17 Remington I had.
The hypothesis the gunsmith and I came up with was that the rifling at the end of the barrel was on a 'loose' spot that only gave contact with one side of the bullet from one side of the barrel.
The .17 bullet being so light was then exiting at an angle that made aerodynamics unstable.

That was his and my idea anyway. He ended up cutting 2" off the barrel and recrowning which got it shooting correctly.

Barrels fucked
Hope that is of some assistance.

Originally Posted by jakewire

Barrels fucked
Hope that is of some assistance.

Straight to the point there

Looks a lot like a poorly tuned compound bow!

Shoots consistent - they're all entering at the same side on pitch.

Yeah, she is toast.... I'll give you $50 for it and to sweeten the deal I'll dispose of the ammo free of charge.

As it's a .17, you won't get a borescope up it, well at least any I've ever seen. Rabbits at 50 are definitely safe

You been drinking.

It looks to me that even shortening and re crowning the barrel might be a waste of time after a waste of money
So don't waste any more time or money in it

And I note that was at 12 yards through a scope
I test plenty of vintage rifle barrels that look more like shotguns and have bulges and rings in the bore that shoot better than that at 50 yards with open sights and old eyes

There's a lot of reasons why this barrel shoots so badly and I suspect they are all in play with this one

what about putting a patch down it and feeling for loose sections ? might at least give you an idea of if and where the barrel may be bulged ?
if it's near enough to the muzzle chopping and re crowning could be an option ?