Unable to find much info out there for these frangible rounds. Working with their 100 gr 9mm bullets.
Loaded up a small lot using the following: Sinterfire 100 gr bullets, new Star-Line brass, 4.0 grains of W231, Winchester small pistol primers, OAL 1.155.
At the range using a Glock Gen 1 M17 no issues whatsoever - 2-handed, single hand, weak sided, loading from a magazine by manually cycling the slide and also by depressing the slide release for the first round.
Using the same ammo in a new Glock Gen 4 M34 - no problems at all with two-handed, but switching to single hand or weak sided, the first round chambered fine, ejected fine, but the following rounds would not seat fully into the chamber, and the slide would not go fully into battery.
Thoughts:
1. The M17 is a gun that I had had since new and have slightly over 35,000 documented rounds through it - so I think it qualities as broken in. Also, all springs are original. It has a history with me of digesting EVERYTHING that I have ever put in it.
2. The M34 is new with maybe 100 rounds through it. Maybe firing a couple of hundred rounds of factory ammo will smooth it up. Additionally, the fellow that I bought it from had upgraded the trigger assembly with lighter stings - may have to look into this. Finally, the slide has a slightly greater mass due to its length even though it has a large amount of metal removed from the top of the slide.
Sinterfire and Winchester list powder ranges as 3.9 to 4.4 max with a pressure of 31,000.
SAAMI lists max pressure of 35,000.
So, loaded up a small lot with an increase in powder to 4.3 gr. Will see what happens.
Loaded up a small lot using the following: Sinterfire 100 gr bullets, new Star-Line brass, 4.0 grains of W231, Winchester small pistol primers, OAL 1.155.
At the range using a Glock Gen 1 M17 no issues whatsoever - 2-handed, single hand, weak sided, loading from a magazine by manually cycling the slide and also by depressing the slide release for the first round.
Using the same ammo in a new Glock Gen 4 M34 - no problems at all with two-handed, but switching to single hand or weak sided, the first round chambered fine, ejected fine, but the following rounds would not seat fully into the chamber, and the slide would not go fully into battery.
Thoughts:
1. The M17 is a gun that I had had since new and have slightly over 35,000 documented rounds through it - so I think it qualities as broken in. Also, all springs are original. It has a history with me of digesting EVERYTHING that I have ever put in it.
2. The M34 is new with maybe 100 rounds through it. Maybe firing a couple of hundred rounds of factory ammo will smooth it up. Additionally, the fellow that I bought it from had upgraded the trigger assembly with lighter stings - may have to look into this. Finally, the slide has a slightly greater mass due to its length even though it has a large amount of metal removed from the top of the slide.
Sinterfire and Winchester list powder ranges as 3.9 to 4.4 max with a pressure of 31,000.
SAAMI lists max pressure of 35,000.
So, loaded up a small lot with an increase in powder to 4.3 gr. Will see what happens.