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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ultimate Long Range Moderate recoil Deer Round
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<blockquote data-quote="Fiftydriver" data-source="post: 60910" data-attributes="member: 10"><p>Keithcandler,</p><p></p><p>First off, welcome to LRH, good to have you here.</p><p></p><p>You give pretty good advice on the topic. Just had a couple questions though, could you please list the loads you are using in the 257 Wby and 7mm STW to reach the performance levels you listed. I would be very interested in that information.</p><p></p><p>I mean, I have loaded for alot of 7mm STWs and they all topped out at around 3500 fps with the 140 gr bullets. Some as low as 3450 fps with max loads using Retumbo which is the best powder I have found for this case.</p><p></p><p>The 7mm RUM is only a 3550 to 3600 fps round when loaded to the hilt with a 140 and generally it rarely breaks 3550 in a 26" barrel. Lazzeroni only lists 3750 fps with his big 7.21 Firebird with the 140 gr pills and thats with a 27" barrel.</p><p></p><p>On the 257 front, The Wby will safely handle 3600 to 3650 fps with a 100 gr pill and 3300 to 3350 fps with the 115 gr pills in a 26" barrel but I have yet to see one get within 150 fps of the velocity your listing with either bullet weight.</p><p></p><p>I have built a half dozen 257 STW rifles this last year with barrels from 26 to 30" and with the 100 gr pills, they will hit 3800 fps in a 26" pipe, around 3900 fps in a 28" barrel and 3950 to 3975 fps in a full 30" pipe.</p><p></p><p>With the 115 gr bullets, the 257 STWs will hit 3500 fps in a 26" pipe, just shy of 3600 in a 28" and around 3650 in a full 30" barrel.</p><p></p><p>These are all out of 3 groove Lilja barrels.</p><p></p><p>I have just never seen a 7mm STW or 257 Wby come anywhere near the performance levels you list without hitting +75,000 psi level loads. And even then, the primer pockets would be totally blown at these levels.</p><p></p><p>No flame here, just wondering what loads and barrel you are using to reach these performance levels.</p><p></p><p>Good Shooting!!!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 60910, member: 10"] Keithcandler, First off, welcome to LRH, good to have you here. You give pretty good advice on the topic. Just had a couple questions though, could you please list the loads you are using in the 257 Wby and 7mm STW to reach the performance levels you listed. I would be very interested in that information. I mean, I have loaded for alot of 7mm STWs and they all topped out at around 3500 fps with the 140 gr bullets. Some as low as 3450 fps with max loads using Retumbo which is the best powder I have found for this case. The 7mm RUM is only a 3550 to 3600 fps round when loaded to the hilt with a 140 and generally it rarely breaks 3550 in a 26" barrel. Lazzeroni only lists 3750 fps with his big 7.21 Firebird with the 140 gr pills and thats with a 27" barrel. On the 257 front, The Wby will safely handle 3600 to 3650 fps with a 100 gr pill and 3300 to 3350 fps with the 115 gr pills in a 26" barrel but I have yet to see one get within 150 fps of the velocity your listing with either bullet weight. I have built a half dozen 257 STW rifles this last year with barrels from 26 to 30" and with the 100 gr pills, they will hit 3800 fps in a 26" pipe, around 3900 fps in a 28" barrel and 3950 to 3975 fps in a full 30" pipe. With the 115 gr bullets, the 257 STWs will hit 3500 fps in a 26" pipe, just shy of 3600 in a 28" and around 3650 in a full 30" barrel. These are all out of 3 groove Lilja barrels. I have just never seen a 7mm STW or 257 Wby come anywhere near the performance levels you list without hitting +75,000 psi level loads. And even then, the primer pockets would be totally blown at these levels. No flame here, just wondering what loads and barrel you are using to reach these performance levels. Good Shooting!!! Kirby Allen(50) [/QUOTE]
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Ultimate Long Range Moderate recoil Deer Round
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