- Which glocks have partially unsupported chambers full#
- Which glocks have partially unsupported chambers free#
By personal tests, I long since found he was absolutely correct.
Which glocks have partially unsupported chambers full#
This was the recommendation of a PHD polymer physicist who calculated this PC thickness would withstand the torque spin-up of a full power 30/06 load generating in the area of 50K chamber pressure.
004" from land to groove, poses no problem as the polymer is also flexible and simply contours to the rifling and the coating still encases the inner alloy.
Which glocks have partially unsupported chambers free#
The PC has a tenacious bond to the alloy, unlike copper, which at higher pressures can break free from the soft inner core. The coating can be as hard as 3H+ so it's as hard as copper. This increase in velocity is due to lesser friction and as a side benefit gun barrels run cooler. The polymer is much slicker than copper or lubed alloy, this results in an approximate 5% in muzzle velocity increase compared to identical load data for copper jackets. Isn't the engraving by the rifling deeper than the coating? I was thinking the alloy of the bullet still was the major player in obturation by upset and in spin up?I just wish I could group like that at 25 yards, no all my testing is done with a ransom rest, so I can take the human element out as much as possible.Īs far as the polymer jacket, it has several properties that make it very unusual. I kinda thought that polymer coatings, whether PC or HiTek, were acting mainly as a barrier (and dry lubricant, maybe?) between bullet and bore.
That's great shooting, there, Dragon heart!ġ00 grains? Light and fast, that one.
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