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Long Range Hunting & Shooting
APS 338 Raptor, R&D early results
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<blockquote data-quote="MontanaRifleman" data-source="post: 844117" data-attributes="member: 11717"><p>Sweet looking rifle Kirby! I was under the impression that the Raptor was built with a special/propitiatory action and barrel?</p><p></p><p>Did some number crunching using H2O capacities of 107 and 134 (guessing) for the 300 RUM and 338 Raptor I came up with overbore indexes of 1444 and 1494 for each respectively. Using the 230 gr and 300 gr bullets I came up with bullet weight to case volume ratios for each cartridge of 2.15 and 2.24. If 100 gr of 33 is a good working max for the 230's in the 300 RUM, that should equate to about 97% case capacity.</p><p></p><p>Based on the above, I am going to go out on a limb and predict the max charge of RL33 in the Raptor will be 92% case capacity with "good" velocity <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 844117, member: 11717"] Sweet looking rifle Kirby! I was under the impression that the Raptor was built with a special/propitiatory action and barrel? Did some number crunching using H2O capacities of 107 and 134 (guessing) for the 300 RUM and 338 Raptor I came up with overbore indexes of 1444 and 1494 for each respectively. Using the 230 gr and 300 gr bullets I came up with bullet weight to case volume ratios for each cartridge of 2.15 and 2.24. If 100 gr of 33 is a good working max for the 230's in the 300 RUM, that should equate to about 97% case capacity. Based on the above, I am going to go out on a limb and predict the max charge of RL33 in the Raptor will be 92% case capacity with "good" velocity :rolleyes::D [/QUOTE]
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APS 338 Raptor, R&D early results
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