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Hunting
Long Range Hunting & Shooting
300 wsm ablitys
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<blockquote data-quote="MontanaRifleman" data-source="post: 297397" data-attributes="member: 11717"><p>I started at 65 with the 180's and 59 with the 210's. I wouldn't recommend 65 gr as a starting load for 180's with other rifles. I had a good idea how my rifle perfromed with H4350 which usually takes about a 1 gr less chareg than RL17 in a 300 WSM. Alliant's max for a 180 Speer BTSP is 66 gr of RL17 and they dont list a heavier bullet. Different bullets of same cal and weight can and will produce different preasures with same charges.</p><p> </p><p>Rule of thumb is to start at least 5% less than epxected max. Wiitn no data available be coservative.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 297397, member: 11717"] I started at 65 with the 180's and 59 with the 210's. I wouldn't recommend 65 gr as a starting load for 180's with other rifles. I had a good idea how my rifle perfromed with H4350 which usually takes about a 1 gr less chareg than RL17 in a 300 WSM. Alliant's max for a 180 Speer BTSP is 66 gr of RL17 and they dont list a heavier bullet. Different bullets of same cal and weight can and will produce different preasures with same charges. Rule of thumb is to start at least 5% less than epxected max. Wiitn no data available be coservative. [/QUOTE]
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