I've reloaded for hunting for decades but to me 300 yards was a long shot. I measured out on family land 100, 200, 300, 400, 500 meters and sat up milk jugs at those ranges. Me and a couple of friends thought about getting into silhouette shooting. It became clear that 200 meters off hand was my limit back then. I had to take a sit to hit the milk jugs at 300 m.
I've decided to get into longer range shooting again. I sold my 700 in 6.5 swede so I'm looking to use my Win M70 308 while I build a 7PRC. I have equipment for 308 instead of full length resizing I set up my dies and was working to just bump my fireformed brass back .002. But, my problem is my brass body was squeezed down so much by my dies that my shoulder datum was growing as I worked the die down to my desired position. I was back to full shell holder contact with cam over to get my resized datum back to the zero datum measured by my gages used on the fired brass. I am just using the stoney point/Hornady comparator with my Mitutoyo Calipers (i'm a machinist by trade).
I've ordered the lyman shell holder set with the + and minus holders. I am considering going to a Neck die or purchasing a bump die to leave the body less worked while I practice and improve my technique. I am building a heavier barrel rifle in the 7 prc as money allows so I don't want to re-chamber the 308 right now. So I've got a chamber that is wide but not long on headspace. For hunting perfectly adequate, but what would you guys and gals suggest for brass prep for longer range accuracy. In factory ammo this rifle has not been super accurate until I hit 175 or 178 grain bullets. Reloading has been with full length resizing, pocket uniforming, trim to equal lengths, head stamps matched, Ohaus 10-10 scale,and thats about it. I use the mag and that means Jump on seating on this rifle. I'm willing to single load and seat into the lands for longer range practice. I have the equipment to anneal and neckturn from converting brass for obsolete cartridges in the past. I am capable of reading mics and calipers etc. I do not have a concentricity gage but I have dial test indicatores and v blocks and a small granite surface plate as pieces of my personal equipment, which is at home since right now I work for a ISO 9001 company and not in a job shop.
So what would you more experienced long range shooters theorize with this chamber to squeeze the most accuracy out of it. I'll be practicing again. Since I need a bench or some other support beyond 400. I'm a mediocre shot and experienced reloader only for hunting and practice just re-starting into longer ranges. I've set on 178 eld-x for the bullet, my present loads use IMR 4895 and CCI 200 primers. I'm willing to work with other powders, although as a hunter I haven't really had temperature problems in my 300 and under shooting, after I get my brass technique sorted out.
I've decided to get into longer range shooting again. I sold my 700 in 6.5 swede so I'm looking to use my Win M70 308 while I build a 7PRC. I have equipment for 308 instead of full length resizing I set up my dies and was working to just bump my fireformed brass back .002. But, my problem is my brass body was squeezed down so much by my dies that my shoulder datum was growing as I worked the die down to my desired position. I was back to full shell holder contact with cam over to get my resized datum back to the zero datum measured by my gages used on the fired brass. I am just using the stoney point/Hornady comparator with my Mitutoyo Calipers (i'm a machinist by trade).
I've ordered the lyman shell holder set with the + and minus holders. I am considering going to a Neck die or purchasing a bump die to leave the body less worked while I practice and improve my technique. I am building a heavier barrel rifle in the 7 prc as money allows so I don't want to re-chamber the 308 right now. So I've got a chamber that is wide but not long on headspace. For hunting perfectly adequate, but what would you guys and gals suggest for brass prep for longer range accuracy. In factory ammo this rifle has not been super accurate until I hit 175 or 178 grain bullets. Reloading has been with full length resizing, pocket uniforming, trim to equal lengths, head stamps matched, Ohaus 10-10 scale,and thats about it. I use the mag and that means Jump on seating on this rifle. I'm willing to single load and seat into the lands for longer range practice. I have the equipment to anneal and neckturn from converting brass for obsolete cartridges in the past. I am capable of reading mics and calipers etc. I do not have a concentricity gage but I have dial test indicatores and v blocks and a small granite surface plate as pieces of my personal equipment, which is at home since right now I work for a ISO 9001 company and not in a job shop.
So what would you more experienced long range shooters theorize with this chamber to squeeze the most accuracy out of it. I'll be practicing again. Since I need a bench or some other support beyond 400. I'm a mediocre shot and experienced reloader only for hunting and practice just re-starting into longer ranges. I've set on 178 eld-x for the bullet, my present loads use IMR 4895 and CCI 200 primers. I'm willing to work with other powders, although as a hunter I haven't really had temperature problems in my 300 and under shooting, after I get my brass technique sorted out.
