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Rifles, Reloading, Optics, Equipment
Reloading
180 Hammer Hunters 300 Win--which powder? RL26, Retumbo, H4350, H1000?
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<blockquote data-quote="WYO300RUM" data-source="post: 2622977" data-attributes="member: 32631"><p>Ok. Yesterday. Started out at 68 degrees. Got up to 81 degrees. I had 300 win mag loads with 80.0 grs RL26. They shot great last week in Montana at buddies range. Was 55 up to 65 degrees that day. Yesterday I had some loads with 143 Hammers, RL26 for 7 mag. First 3 shots no pressure signs. Last 2 slight ejector mark. Firing pin dent a little cratered . Primer flattened more that first 3. Slightly stiff bolt. I thought what the heck. Sun was hot. I let cool 5 min. plus between shots. The same exact sinerio with 300 win mag 180 Hammer RL26. Exactly. It didn't register until today what I think is going on. It's not that hot when I hunt here but I'm dropping down from 80.0 grs RL26 to at least 79.5 or 79.0. 80.5 had no pressure that day in Montana. I'm a believer now! Not temp stable. Why didn't they make it temp stable ? Anyway, With 300 win mag 26 in. barrel I had Ave. 3303 fps. with 80.0 grs. RL26. GunWerks/ADG case. Fed 215m . 180 Hammer. SD5 - ES10. With the 7 mag ,143 Hammer 70.0 grs H1000 shot decent . Ave. 3142. My old standby of 72.0 grains Retumbo and 168 Berger Ave. 2976 in 24 in barrel shot great as usual. I tried Retumbo, RL26 and H1000 with 143 Hammer. H1000 shot best. No 300 RUM or 6.5 PRC tested. I'll shoot Sat. in Montana .Shot some rounds in 243 with 103 ELDX and Magnum powder for first time. Sucked. I'll go back to old standby's. Im going to have to order some 6mm Hammers <img class="smilie smilie--emoji" loading="lazy" alt="😉" title="Winking face :wink:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png" data-shortname=":wink:" /></p></blockquote><p></p>
[QUOTE="WYO300RUM, post: 2622977, member: 32631"] Ok. Yesterday. Started out at 68 degrees. Got up to 81 degrees. I had 300 win mag loads with 80.0 grs RL26. They shot great last week in Montana at buddies range. Was 55 up to 65 degrees that day. Yesterday I had some loads with 143 Hammers, RL26 for 7 mag. First 3 shots no pressure signs. Last 2 slight ejector mark. Firing pin dent a little cratered . Primer flattened more that first 3. Slightly stiff bolt. I thought what the heck. Sun was hot. I let cool 5 min. plus between shots. The same exact sinerio with 300 win mag 180 Hammer RL26. Exactly. It didn't register until today what I think is going on. It's not that hot when I hunt here but I'm dropping down from 80.0 grs RL26 to at least 79.5 or 79.0. 80.5 had no pressure that day in Montana. I'm a believer now! Not temp stable. Why didn't they make it temp stable ? Anyway, With 300 win mag 26 in. barrel I had Ave. 3303 fps. with 80.0 grs. RL26. GunWerks/ADG case. Fed 215m . 180 Hammer. SD5 - ES10. With the 7 mag ,143 Hammer 70.0 grs H1000 shot decent . Ave. 3142. My old standby of 72.0 grains Retumbo and 168 Berger Ave. 2976 in 24 in barrel shot great as usual. I tried Retumbo, RL26 and H1000 with 143 Hammer. H1000 shot best. No 300 RUM or 6.5 PRC tested. I'll shoot Sat. in Montana .Shot some rounds in 243 with 103 ELDX and Magnum powder for first time. Sucked. I'll go back to old standby's. Im going to have to order some 6mm Hammers 😉 [/QUOTE]
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Reloading
180 Hammer Hunters 300 Win--which powder? RL26, Retumbo, H4350, H1000?
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