The Firing Line Forums - View Single Post - loads for 9mm using IMR 700-X, help

rg1 · September 14, 2009, 09:58 AM

Midways LoadMap series of manuals tested 700X in 9MM. With three 115 gr FMJ-RN bullets using RP cases and Win SP primers:
plated 115 FMJ-RN oal 1.165"--3.7 grains-1000fps--25200psi
------------------------------3.8-------1021-----26200
------------------------------3.9-------1042-----27100
------------------------------4.0-------1063-----28100
------------------------------4.1-------1084-----29100
------------------------------4.2-------1105-----30000psi
------------------------------4.3-------1126-----31000
----------------------Maximum-4.4------1147-----32000
Speer Gold Dot 115 gr HP 1.145" oal 700X powder
3.7---967fps--24100psi
3.9---1010---26200
4.1---1052---28300
4.3---1095---30400
Maximum--4.5--1138fps--32500psi
________
With a Speer 115 JHP 1.125" oal
3.7--1003fps---25200psi
3.9--1046-----27500
4.1--1089-----29700
Maximum 4.4--1155fps--33200psi
All three of these bullets are plated but your overall length is shorter and shorter oal increases pressure. I think it does show above that your 3.7-3.9 grain charge is mild though and not maximum. I'd be cautious going above 4.1 grains but with bullets tested in the Midway LoadMap most maximum charges for the 17 bullets tested was at 4.4-4.5 grains of 700X. With the Hornady 115 jacketed XTP the max was 4.1. Noslers 115 FMJ max was 4.2 and the Nosler HP was 4.3. Sierra's 115 JHP max was 4.2 grains. Just for more info.

September 14, 2009, 09:58 AM	#16
rg1 Senior Member Join Date: November 6, 2001 Posts: 1,125	Midways LoadMap series of manuals tested 700X in 9MM. With three 115 gr FMJ-RN bullets using RP cases and Win SP primers: plated 115 FMJ-RN oal 1.165"--3.7 grains-1000fps--25200psi ------------------------------3.8-------1021-----26200 ------------------------------3.9-------1042-----27100 ------------------------------4.0-------1063-----28100 ------------------------------4.1-------1084-----29100 ------------------------------4.2-------1105-----30000psi ------------------------------4.3-------1126-----31000 ----------------------Maximum-4.4------1147-----32000 Speer Gold Dot 115 gr HP 1.145" oal 700X powder 3.7---967fps--24100psi 3.9---1010---26200 4.1---1052---28300 4.3---1095---30400 Maximum--4.5--1138fps--32500psi ________ With a Speer 115 JHP 1.125" oal 3.7--1003fps---25200psi 3.9--1046-----27500 4.1--1089-----29700 Maximum 4.4--1155fps--33200psi All three of these bullets are plated but your overall length is shorter and shorter oal increases pressure. I think it does show above that your 3.7-3.9 grain charge is mild though and not maximum. I'd be cautious going above 4.1 grains but with bullets tested in the Midway LoadMap most maximum charges for the 17 bullets tested was at 4.4-4.5 grains of 700X. With the Hornady 115 jacketed XTP the max was 4.1. Noslers 115 FMJ max was 4.2 and the Nosler HP was 4.3. Sierra's 115 JHP max was 4.2 grains. Just for more info.