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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New 300 RUM for the Bulls
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<blockquote data-quote="WYO300RUM" data-source="post: 2632019" data-attributes="member: 32631"><p>Thank you !</p><p>I was running 92.5 grs. N570 with 215 Berger for couple years. Was 3191 ave. fps..</p><p>SD 5 ES 11 . Fed215M. ADG/Gunwerks. Last 2 times this month I shot it I got slight ejector swipes and cratered firing pin dent. Primer not flattened butStickey bolt lift. Cases were trimmed. Shoulder bumped and only have loaded cases 3 and 4 times. I know powder isn't temp sensitive. Maybe case necks thick ? I don't know. I'm 0.40 off lands. I single load. 3.80 OAL. I've had 3 cases split a little ways above rim. Above the sizing marks. I looked with magnifying glass and found about 10 other cases with rings in same place as separation . I can't feel separation with piece of wire inside but the rings are exactly same spot as the 3 that did separate. I neck sized first time. After that barely bumped shoulder. I don't get it. I lowered charge down to 92.0 grs. N570. Will try this week.</p><p>I bet H1000 would work well with 178 AH. Maybe N560 or N565 ? I looked at notes. 181/180 Hammer with 94.0 grs. H1000 Ave. 3432 fps. SD 2 ES 4 ! 28 in. 5R Bartlien barrel.</p><p>300 win. mag 180 Hammer with 80.0 grs. RL26 3303 Ave. fps . My barrel has sped up about 80 fps in about 160 rds.</p></blockquote><p></p>
[QUOTE="WYO300RUM, post: 2632019, member: 32631"] Thank you ! I was running 92.5 grs. N570 with 215 Berger for couple years. Was 3191 ave. fps.. SD 5 ES 11 . Fed215M. ADG/Gunwerks. Last 2 times this month I shot it I got slight ejector swipes and cratered firing pin dent. Primer not flattened butStickey bolt lift. Cases were trimmed. Shoulder bumped and only have loaded cases 3 and 4 times. I know powder isn't temp sensitive. Maybe case necks thick ? I don't know. I'm 0.40 off lands. I single load. 3.80 OAL. I've had 3 cases split a little ways above rim. Above the sizing marks. I looked with magnifying glass and found about 10 other cases with rings in same place as separation . I can't feel separation with piece of wire inside but the rings are exactly same spot as the 3 that did separate. I neck sized first time. After that barely bumped shoulder. I don't get it. I lowered charge down to 92.0 grs. N570. Will try this week. I bet H1000 would work well with 178 AH. Maybe N560 or N565 ? I looked at notes. 181/180 Hammer with 94.0 grs. H1000 Ave. 3432 fps. SD 2 ES 4 ! 28 in. 5R Bartlien barrel. 300 win. mag 180 Hammer with 80.0 grs. RL26 3303 Ave. fps . My barrel has sped up about 80 fps in about 160 rds. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New 300 RUM for the Bulls
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