robin303 Posted June 25, 2010 Share Posted June 25, 2010 Hey guys I just got my 1000 boolits from Montana Gold of 124 JHP and just wondering what is your favorite OAL is. With my RN I settled for 1.135 and real happy with that. All my factory HP are 1.074 but not really sure I want to do that. This is really for my matches comming up. I will test couple hundred for sure before of course. Thanks Link to comment Share on other sites More sharing options...
DWFAN Posted June 25, 2010 Share Posted June 25, 2010 What gun, powder ? I run Montana Gold 124JHP at 1.135 Link to comment Share on other sites More sharing options...
Sarge Posted June 25, 2010 Share Posted June 25, 2010 I would load up a dummy round at 1.14 or 1.15 and drop it in your barrel(removed from the gun of course). If it touches the rifling I'd back it off a little tiny bit at a time until it drops in and out freely without touching anything. Measure that and then look for recipes for that oal. In very general terms the longer the better for reliability and other issues. Link to comment Share on other sites More sharing options...
robin303 Posted June 25, 2010 Author Share Posted June 25, 2010 (edited) What gun, powder ? I run Montana Gold 124JHP at 1.135 Thanks, Sounds like a good round number. 700X AutoComp Power Pistol Unique Edited June 25, 2010 by robin303 Link to comment Share on other sites More sharing options...
robin303 Posted June 25, 2010 Author Share Posted June 25, 2010 I would load up a dummy round at 1.14 or 1.15 and drop it in your barrel(removed from the gun of course). If it touches the rifling I'd back it off a little tiny bit at a time until it drops in and out freely without touching anything. Measure that and then look for recipes for that oal. In very general terms the longer the better for reliability and other issues. Thanks Sarge, That makes perfect sense. Link to comment Share on other sites More sharing options...
CZinSC Posted June 25, 2010 Share Posted June 25, 2010 I would load up a dummy round at 1.14 or 1.15 and drop it in your barrel(removed from the gun of course). If it touches the rifling I'd back it off a little tiny bit at a time until it drops in and out freely without touching anything. Measure that and then look for recipes for that oal. In very general terms the longer the better for reliability and other issues. Thanks Sarge, That makes perfect sense. I took Sarge's advice just the other day on this same bullet ( MG 124JHP ). I found my CZ SP01 likes 1.116, but not 1.117. The 1.117 dropped free of the Dillon case gauge, but not the barrel. I've loaded them to 1.114 and so far so good. Link to comment Share on other sites More sharing options...
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