wblacksh Posted March 8, 2015 Share Posted March 8, 2015 Hi. I just bought a new STI Trubor and will get it hopefully Monday. I received a recommend load from the dealer, and got confused on part of it. When developing a load for major PF I know to step it up slowly using a chronograph. My question is that that the dealer told me that I need to also check the pressure as I work up from -10% of the recommendation. Did I overlook something when I was learning about loading ammo and about Open guns and power factor? How do I check the pressure, or am I just misunderstanding something? I completely get the chronograph part, and to make sure nothing on the gun is looking like it is wearing un-expectedly, but I am missing how to check the pressure. Thanks in advance, -Wayne Link to comment Share on other sites More sharing options...
Sarge Posted March 8, 2015 Share Posted March 8, 2015 (edited) Check for pressure SIGNS on the brass. Flat primers or primer flower pierced primers are all signs of pressure. Is it a 9 or 38? What load did he recommend? Edited March 8, 2015 by Sarge Link to comment Share on other sites More sharing options...
wblacksh Posted March 8, 2015 Author Share Posted March 8, 2015 (edited) Hi. It is 9. This is what they recommended: OAL: 1.16" Powder: 8.5gr Vihta Vuori 3N38 Bullets: 124 gr Bullet Primers: Small Rifle Primers This is what I already have so I am currently searching on the forums for load data to use the stuff I already have: HS6 - I have this already. (I also have Autocomp on back order and hopefully I should get it in less than 3 weeks). 124gr Xtreme bullets Once fired factory 9mm brass mixed head stamp. (I am picky so I actually sorted it by head stamp myself) CCI Small Rifle Primers and CCI Small Pistol Primers Edited March 8, 2015 by wblacksh Link to comment Share on other sites More sharing options...
JMike Posted March 8, 2015 Share Posted March 8, 2015 That is good info from Sarge and you are definitely doing it correct. Spent brass examination and chrono data is invaluable. Good luck to you. Link to comment Share on other sites More sharing options...
cnote Posted March 8, 2015 Share Posted March 8, 2015 Hi. It is 9. This is what I already have so I am currently searching on the forums for load data to use the stuff I already have: HS6 - I have this already. (I also have Autocomp on back order and hopefully I should get it in less than 3 weeks). 124gr Xtreme bullets Once fired factory 9mm brass mixed head stamp. (I am picky so I actually sorted it by head stamp myself) CCI Small Rifle Primers and CCI Small Pistol Primers Follow your plan, you have good components Link to comment Share on other sites More sharing options...
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