RGC Posted February 7, 2020 Share Posted February 7, 2020 I have a few thousand extra .356 Zero and HAP’s that I need to turn into something. Have plenty 38 SC so was looking to make some production friendly training rounds for a new to me Gen 5 Glock 34. Read that these Gen 5 barrels may be tighter, etc. Anyone had any experiences or qualms with .356 in these barrel? I come from a world of “shouldn’t be a problem”....and then. Looking for actual loads. I am going to fill with N320 with standard 130 pf load strength. Link to comment Share on other sites More sharing options...
Khaot1c Posted February 7, 2020 Share Posted February 7, 2020 The throats on the Gen5 9mm barrels don't seem to be as 'long' as Gen4. I had to change my Gen4 pet load in order to pass the plunk in a gen5 barrel by shortening the OAL. As far as bullet diameter, my coated bullets are .356 but that's coated and not jacketed. I'd say the standard disclaimer applies - start low and work up. Link to comment Share on other sites More sharing options...
BJB Posted February 7, 2020 Share Posted February 7, 2020 You say 0.356", so that's the 125 HAP (The 115 gr HAP is 0.355"). 4.1 to 4.2 gr N320 @ 1.12" or so should put you around 130pf........shouldn't be a problem. BTW: The Gen 5 Glock barrels aren't tighter, their throat however might be. Link to comment Share on other sites More sharing options...
RGC Posted February 7, 2020 Author Share Posted February 7, 2020 6 minutes ago, BJB said: You say 0.356", so that's the 125 HAP (The 115 gr HAP is 0.355"). 4.1 to 4.2 gr N320 @ 1.12" or so should put you around 130pf........shouldn't be a problem. BTW: The Gen 5 Glock barrels aren't tighter, their throat however might be. Thanks. Yes the 125 HAP. The Zeros are also 125 but their seating depth is different due to profile. But in general my concern or inquiry was related to the bullet OD. Link to comment Share on other sites More sharing options...
BJB Posted February 7, 2020 Share Posted February 7, 2020 15 minutes ago, RGC said: Thanks. Yes the 125 HAP. The Zeros are also 125 but their seating depth is different due to profile. But in general my concern or inquiry was related to the bullet OD. Bullet OD will not be an issue at all. The Gen 5 has a shorter lead-in but the HAP is good for that. Plunk that thing up front to check your OAL then load away with no worries about OD. Plunk the Zero too since it's a different profile. If you have to shorten it a little still no worries at 4.1 to 4.2 grains of N320 because that's nowhere near max charge, pressures won't spike if you shorten OAL a little bit. Link to comment Share on other sites More sharing options...
RGC Posted February 7, 2020 Author Share Posted February 7, 2020 (edited) I had some left over Autocomp.... Just kidding,....thanks on the OD. Edited February 7, 2020 by RGC Link to comment Share on other sites More sharing options...
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