04-19-2014, 10:45 PM
LR,
If you have been able to avoid the recent big Liberty - Stoner - Saturn bruhahaha, count yourself lucky. To summarize, some members purchased new barrels that would not chamber some factory ammo or would show high pressure signs. Undersized throats were suspected, reamers maligned, tolerances questioned, names called and mud slung.
As it turns out, several years ago, Steve Saturn worked with PTG to make a variation of the Grendel with a straight leade and a 1.5 degree throat. Unlike the LBC-AR, it retained the Grendel's neck diameter of 0.300". The reamer drawing says "Grendel II."
As you suspected, it is likely to be pretty much the same as the original Grendel (no compound throat), but few of us have ever seen the that reamer drawing.
Based upon a quick look at the G II drawing the end of the 1.5 degree section is slightly farther into the barrel. This means that a standard Grendel compound throat (undersized or not), it can be reamed (or scraped, as Saturn calls it) to the Grendel II.
[ATTACH=CONFIG]5069[/ATTACH]
If you have been able to avoid the recent big Liberty - Stoner - Saturn bruhahaha, count yourself lucky. To summarize, some members purchased new barrels that would not chamber some factory ammo or would show high pressure signs. Undersized throats were suspected, reamers maligned, tolerances questioned, names called and mud slung.
As it turns out, several years ago, Steve Saturn worked with PTG to make a variation of the Grendel with a straight leade and a 1.5 degree throat. Unlike the LBC-AR, it retained the Grendel's neck diameter of 0.300". The reamer drawing says "Grendel II."
As you suspected, it is likely to be pretty much the same as the original Grendel (no compound throat), but few of us have ever seen the that reamer drawing.
Based upon a quick look at the G II drawing the end of the 1.5 degree section is slightly farther into the barrel. This means that a standard Grendel compound throat (undersized or not), it can be reamed (or scraped, as Saturn calls it) to the Grendel II.
[ATTACH=CONFIG]5069[/ATTACH]