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Tennessee Gun Owners Forums
Reloading
.308 loads for 168gr and 175gr?
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<blockquote data-quote="jlanecr500" data-source="post: 5139935" data-attributes="member: 16430"><p>I ran the numbers with a 20"bbl loaded to Sammi length. I ran H4895 because my QL doesn't have the military powder listed. Being a short barrel, node 5 will be right at the top end on pressure. A 22" barrel makes that node at slightly less pressure. For each load, Node 5 is the faster node at max pressure in bold and underlined. Start .5gr below and work up, watching for pressure signs. It has been my experience with 308, that it is happiest right at the top end.. Loads not in bold are node 6 and should not show any pressure signs. </p><p></p><p></p><p><strong><u>Node 5 imr3031 168amax</u></strong></p><p><u><strong>42grC 58.5kpsi 2660fps</strong></u></p><p>Node 6 Imr3031 168amax </p><p>40gr 50.5kpsi 2550fps</p><p></p><p><u><strong>Node 5 Imr3031 175hpbt 41.3grC 61kpsi 2600fps</strong></u></p><p>Node 6 imr3031 174hpbt 39.6gr 53.8kpsi 2515fps</p><p></p><p><u><strong>Node 5 H4895 175hpbt 42.6gr 61.5kpsi 2600fps </strong></u></p><p>Node 6 H4895 175hpbt 41gr</p><p>55kpsi 2510fps</p><p></p><p><u><strong>Node 5 H4895 168amax 43gr 58kpsi 2640fps</strong></u></p><p>Node 6 H4895 168amax 41.5gr </p><p>52kpsi 2550fps</p></blockquote><p></p>
[QUOTE="jlanecr500, post: 5139935, member: 16430"] I ran the numbers with a 20"bbl loaded to Sammi length. I ran H4895 because my QL doesn't have the military powder listed. Being a short barrel, node 5 will be right at the top end on pressure. A 22" barrel makes that node at slightly less pressure. For each load, Node 5 is the faster node at max pressure in bold and underlined. Start .5gr below and work up, watching for pressure signs. It has been my experience with 308, that it is happiest right at the top end.. Loads not in bold are node 6 and should not show any pressure signs. [B][U]Node 5 imr3031 168amax[/U][/B] [U][B]42grC 58.5kpsi 2660fps[/B][/U] Node 6 Imr3031 168amax 40gr 50.5kpsi 2550fps [U][B]Node 5 Imr3031 175hpbt 41.3grC 61kpsi 2600fps[/B][/U] Node 6 imr3031 174hpbt 39.6gr 53.8kpsi 2515fps [U][B]Node 5 H4895 175hpbt 42.6gr 61.5kpsi 2600fps [/B][/U] Node 6 H4895 175hpbt 41gr 55kpsi 2510fps [U][B]Node 5 H4895 168amax 43gr 58kpsi 2640fps[/B][/U] Node 6 H4895 168amax 41.5gr 52kpsi 2550fps [/QUOTE]
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Tennessee Gun Owners Forums
Reloading
.308 loads for 168gr and 175gr?
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