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240 Sierra Match King
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<blockquote data-quote="Eaglet" data-source="post: 227738" data-attributes="member: 3756"><p>I was checking my records from 2006 when I was messing the the <strong>Berger 210 gr.</strong> This is what I found for my factory Sendero 300 RUM using Retumbo powder:</p><p></p><p><strong>101 Grains of Retumbo produced MV of 3306 ft/sec.</strong></p><p></p><p>Pretty Hot Load, of course, extraction was still ok, primer did not look too whipped but bolt face marks on it, no primer leaks, primer pocket very loose, maybe can be used once more but I just would not. Definitely hot! </p><p></p><p><strong>98 Grains of Retumbo produced MV of 3178 ft/sec.</strong></p><p></p><p>Here every thing is cool; no problems even when I think it is about maximun load for my rifle. Brass life not very good; after about two firings primers start getting loose pretty fast. Accuracy is ok!</p><p></p><p>Rem.-Man is right, you definitely get best accuracy results at around 3000 ft/sec. I like how rem-man looks at it and at 3200 ft/sec and within 1500 yards the choice is for the bullet that shoots better.</p><p></p><p>jmden has got also a good point, 3200 is a hot (Max) load that if loaded during cold days you don't feel too good packing during hot summer hunts.</p><p></p><p>Again my feeling is that 240 gr. at 3000 ft/sec is not what I would call a "light" load. Chamber pressures are pobably up there!</p><p></p><p>Good Posts! ...at 1200 yards on Elk I would probably want the 240 grainer heating the air towards the shoulder! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /> Would you not? <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> </p><p></p><p>Note:</p><p>Loads were worked up very carefully. Do not do this at home, your rifle could blow up with 90 grains of Retumbo. Neither the Poster nor this Web site are responsible for the use of this information.</p></blockquote><p></p>
[QUOTE="Eaglet, post: 227738, member: 3756"] I was checking my records from 2006 when I was messing the the [B]Berger 210 gr.[/B] This is what I found for my factory Sendero 300 RUM using Retumbo powder: [B]101 Grains of Retumbo produced MV of 3306 ft/sec.[/B] Pretty Hot Load, of course, extraction was still ok, primer did not look too whipped but bolt face marks on it, no primer leaks, primer pocket very loose, maybe can be used once more but I just would not. Definitely hot! [B]98 Grains of Retumbo produced MV of 3178 ft/sec.[/B] Here every thing is cool; no problems even when I think it is about maximun load for my rifle. Brass life not very good; after about two firings primers start getting loose pretty fast. Accuracy is ok! Rem.-Man is right, you definitely get best accuracy results at around 3000 ft/sec. I like how rem-man looks at it and at 3200 ft/sec and within 1500 yards the choice is for the bullet that shoots better. jmden has got also a good point, 3200 is a hot (Max) load that if loaded during cold days you don't feel too good packing during hot summer hunts. Again my feeling is that 240 gr. at 3000 ft/sec is not what I would call a "light" load. Chamber pressures are pobably up there! Good Posts! ...at 1200 yards on Elk I would probably want the 240 grainer heating the air towards the shoulder! :confused: Would you not? ;) Note: Loads were worked up very carefully. Do not do this at home, your rifle could blow up with 90 grains of Retumbo. Neither the Poster nor this Web site are responsible for the use of this information. [/QUOTE]
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