walkabout Posted November 10, 2016 Report Share Posted November 10, 2016 I have been given a load of 6.5x47 Lapua cases, they are only twice fired but have been trimmed down to 1.830" The recommended is 1.843". What difference do you think these shorter neck cases would make? I realise that there will be less grip on the bearing surface of a bullet, but is it that dramatic? Mark Link to comment Share on other sites More sharing options...
Swarovski1 Posted November 10, 2016 Report Share Posted November 10, 2016 New lapua 6.5x47 brass is around 1.830 Link to comment Share on other sites More sharing options...
walkabout Posted November 10, 2016 Author Report Share Posted November 10, 2016 I will need to recheck measurements? Looks like they will be fine. Good old internet I did a search and 2 different results gave 1.843" I thought 47mm was 1.850" Link to comment Share on other sites More sharing options...
Swarovski1 Posted November 10, 2016 Report Share Posted November 10, 2016 Hi walkabout. 1.850 is max length 1.843 is trim length Most of my lapua 6.5x47 brass has 2 firings and they still won't trim Link to comment Share on other sites More sharing options...
Andrew Posted November 11, 2016 Report Share Posted November 11, 2016 I make 7-08 from 308 and it's about .030" short. Works fine. ~Andrew Link to comment Share on other sites More sharing options...
Chanonry Posted November 13, 2016 Report Share Posted November 13, 2016 13 thou ? Bugger all difference Link to comment Share on other sites More sharing options...
jcampbellsmith Posted November 13, 2016 Report Share Posted November 13, 2016 This guy got carried away with his trimming - http://bulletin.accurateshooter.com/2012/06/stan-wares-radical-short-necked-wolfpup-for-hunter-benchrest/ Regards JCS Link to comment Share on other sites More sharing options...
gbal Posted November 13, 2016 Report Share Posted November 13, 2016 This guy got carried away with his trimming - http://bulletin.accurateshooter.com/2012/06/stan-wares-radical-short-necked-wolfpup-for-hunter-benchrest/ Regards JCSNice one,JCS ! Damn lucky the capacity minimum wasn't a few drops more (the 30/30 Imp never caught on) No need to try this at home.folks (please!) -the standard 30BR is good enough for most,and if it isn't,the 6PPC will be. Shows what will be done,though,when a line is drawn,but the rules say you score more when you touch it. :-) gbal Link to comment Share on other sites More sharing options...
Andrew Posted November 13, 2016 Report Share Posted November 13, 2016 I think of my 1859 Sharps rifle: It is a MOA rifle and has a combustible paper cartridge pushed in behind the bullet. It works just as well just pouring powder into the chamber after pushing the bullet home. The bullet's front driving band is made to engage the rifling and thereby be "locked" into place, facing straight down the bore, with the bullet nose riding the tops of the lands. I think that in a cartridge gun, a precisely made free-bore and custom fit chamber would have the same effect.~Andrew Link to comment Share on other sites More sharing options...
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