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Rifles, Reloading, Optics, Equipment
Reloading
What gives with modern 6.5x55 loading data?
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<blockquote data-quote="Deleted member 118518" data-source="post: 2182223"><p>I have a Mauser 98 large ring with a 24.5" McGowan #3 barrel that shoots the Hornady 129 gr interlock at 2915 fps with 48.6 grs of IMR-4831. The load groups 5/8" three shots at 100 yds. from sand bags. There is no heavy bolt lift or smeared brass on the case head and the primers are not cratered and they maintain their rounded edge. The barrel chamber was hand finished so that as the bolt closes you can feel a very slight snug feeling at the end. That aspect combined with controlled round feed keeps the case head back against the bolt face where it belongs. Upon reloading the case trimmer makes one to two revolutions and it is done. So neck stretch is very minimal and case life is long. My first deer season with it resulted in three deer with the range being between 340 to 385 yards from the short shot to the long shot and one bullet each. Two does and one 9 pointer a bit over 200 lbs. I knew where I would be seeing deer and the scope was set at zero on 300 Yards. Yes, the action was blueprinted. The Hornadys did a great job as did the rifle and cartridge. I love that 6.5X55 SE cartridge. It was easy to find a load and bullet that it liked and I also load a .260 Remington in a 700 BDL with 24" BBl with the 129 and have not yet been able to match velocity of the 6.5 Swede. It runs about 100 fps behind the other cartridge. The case is Hornady and I use the Fed 210 primers. Not that I can be trusted with a calculator but my extrapolations from known loads and pressure readings indicate a chamber pressure of 46,635 CUP. Again that is a best guess.</p></blockquote><p></p>
[QUOTE="Deleted member 118518, post: 2182223"] I have a Mauser 98 large ring with a 24.5" McGowan #3 barrel that shoots the Hornady 129 gr interlock at 2915 fps with 48.6 grs of IMR-4831. The load groups 5/8" three shots at 100 yds. from sand bags. There is no heavy bolt lift or smeared brass on the case head and the primers are not cratered and they maintain their rounded edge. The barrel chamber was hand finished so that as the bolt closes you can feel a very slight snug feeling at the end. That aspect combined with controlled round feed keeps the case head back against the bolt face where it belongs. Upon reloading the case trimmer makes one to two revolutions and it is done. So neck stretch is very minimal and case life is long. My first deer season with it resulted in three deer with the range being between 340 to 385 yards from the short shot to the long shot and one bullet each. Two does and one 9 pointer a bit over 200 lbs. I knew where I would be seeing deer and the scope was set at zero on 300 Yards. Yes, the action was blueprinted. The Hornadys did a great job as did the rifle and cartridge. I love that 6.5X55 SE cartridge. It was easy to find a load and bullet that it liked and I also load a .260 Remington in a 700 BDL with 24" BBl with the 129 and have not yet been able to match velocity of the 6.5 Swede. It runs about 100 fps behind the other cartridge. The case is Hornady and I use the Fed 210 primers. Not that I can be trusted with a calculator but my extrapolations from known loads and pressure readings indicate a chamber pressure of 46,635 CUP. Again that is a best guess. [/QUOTE]
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What gives with modern 6.5x55 loading data?
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