- Aug 17, 2011
- 26,177
Curtis makes a fine barrel, I'll give him that.
Nice sharp rifling, even chrome lining, concentric threads (for suppressor fun), and already had the extractor and hand-guard cap cuts done.
Price is reasonable too.
Maybe it's my luck finally running out, but I'll be damned if I can even make a dent in this bastard when it comes time to drill the gas port.
I'm somewhere between 11 and 13 bits used today, and no progress to speak of. Either snap the bit before it bites into the barrel, or it just doesn't cut into the barrel. All the bits that broke, managed to get them out, so I'm pretty sure I'm not trying to drill thru a broken bit remain.
High Speed Steel, Black Oxide, Titanium, 8% Cobalt High Speed Steel - nothing. Just more broken or dulled bits. 135 degree split point, just like what Curtis sells for drilling the port out.
I'm at a loss for words.
Nice sharp rifling, even chrome lining, concentric threads (for suppressor fun), and already had the extractor and hand-guard cap cuts done.
Price is reasonable too.
Maybe it's my luck finally running out, but I'll be damned if I can even make a dent in this bastard when it comes time to drill the gas port.
I'm somewhere between 11 and 13 bits used today, and no progress to speak of. Either snap the bit before it bites into the barrel, or it just doesn't cut into the barrel. All the bits that broke, managed to get them out, so I'm pretty sure I'm not trying to drill thru a broken bit remain.
High Speed Steel, Black Oxide, Titanium, 8% Cobalt High Speed Steel - nothing. Just more broken or dulled bits. 135 degree split point, just like what Curtis sells for drilling the port out.
I'm at a loss for words.