SMSgt: Thanks for the tip on Hodgdon powder. I just ordered Penn bullets and we will see how the quality is. Can you shoot reloads in a Glock with an unsupported chamber? I remember reading something about this some time ago.
A lot of internet myths and stories on this subject, much of which has been told and retold for years giving it "near-legend" reputation. Keep in mind that everything on the internet is there forever, and even if any past issues with any gun (or anything else, for that matter) are cleared up, these old "issues" will still pop up as if it happened yesterday.
To begin with, the 2009 "Glock Annual" magazine describes the barrels as "hexagonal." And yes, Glock says no reloads--as does almost every other gun maker. Many people fire thousands of reloads in Glocks, with or without aftermarket barrels, and never have an issue.
I bought a Storm Lake barrel for my G30 specifically for shooting reloads (erring on the safety side of the issue). In comparing it with the factory barrel, the only difference I can see is that the factory barrel might have slightly
more support at the feed ramp area, neither of which would I call insufficient or unsupported. The rifling appears identical. The Glock chamber is slightly looser, but that's a given with Glocks and helps ensure its reliable feeding. I've never seen a case with the infamous "Glock bulge" and I pick up a lot of range brass, much of which has been fired through Glocks. One thing I
do inspect closely for is nicks on the case mouth. Nicks becoome stress points. Small ones can be chamfered out, but deep ones will lead to premature cracks, so those cases generally get tossed into the scrap bucket.
The majority of the problems with reloads have been in the .40s, and most "accidents" have been attributed to reloads or other faulty ammo. I visually inspect each tray of powder-filled cases for proper level, a step not possible with many progressive loaders. Nor do I load hot loads, low to mid-range only, so pressures are not extreme.