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Rifles, Reloading, Optics, Equipment
Reloading
.338 RUM with 300gr SMK and Retumbo... over pressure?
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<blockquote data-quote="Broz" data-source="post: 618603" data-attributes="member: 7503"><p>If you are full length sizing I doubt it is a shoulder problem. I have seen this happen with cases that were getting long on the shoulder, where it was time for a shoulder bump. But these cases also closed a little stiff too. Most lesser expensive dies do plenty of shoulder bump to be sure to cover a wide varience in chamber dimentions. If your rounds are chambering and the bolt closes easy and smooth I would be looking at the powder or charge. Like Autorotate and I sated earlier. This is pretty common with running Retumbo at or close to max. There is a fine line with a spike just waiting to happen. I would drop back 3 grains or so, or look at loading some H-1000.</p><p> </p><p>Jeff</p></blockquote><p></p>
[QUOTE="Broz, post: 618603, member: 7503"] If you are full length sizing I doubt it is a shoulder problem. I have seen this happen with cases that were getting long on the shoulder, where it was time for a shoulder bump. But these cases also closed a little stiff too. Most lesser expensive dies do plenty of shoulder bump to be sure to cover a wide varience in chamber dimentions. If your rounds are chambering and the bolt closes easy and smooth I would be looking at the powder or charge. Like Autorotate and I sated earlier. This is pretty common with running Retumbo at or close to max. There is a fine line with a spike just waiting to happen. I would drop back 3 grains or so, or look at loading some H-1000. Jeff [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
.338 RUM with 300gr SMK and Retumbo... over pressure?
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