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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.257" 100g Matchkings out of 25/06 Rem.
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<blockquote data-quote="Holmes" data-source="post: 27486" data-attributes="member: 457"><p>My favourite 257 MK load also uses I-4350, 53.0 grains which yields 3475 fps from my rifle. (WW brass & Fed 210s)</p><p></p><p>I've also worked with H-4831SC, I-4831, and R-22. These all yield higer velocities and will stay at the .5" mark, but the I-4350 shoots noticeably tighter, 3s if I do my part.</p><p></p><p>The 100 grain Sierra MK has performed well for me on goats at 4-550 yards. All shots have been broadside lung whacks. Entrance and exit wounds have been impressive. Whether the bullet is fragging or tumbling upon impact with the ribs is unknown as I have not recovered and bullets. I would not use this bullet for big bone shots.</p><p></p><p>On prairie rats, the MK simply bores a clean hole through the little beasts at ranges beyond 400 yards. A center of mass hit is required to insure immediate termination. Lack of homogenous density I suppose.</p><p></p><p>Nosler 85 gr BT and Hornady 75 V-Max offer much better rat destruction, but the wind raises hell with them beyond 500.</p><p></p><p>You might consider working with the Barnes 100 XLC and another consideration would be the Berger 115 VLD. Both offer great BCs. I'm experimenting with the Berger now and may use it this year on goats.</p><p></p><p>Another Sierra I've had great luck with is their 117 SBT. It whacks goats like the Hammer of Thor with very predictable terminal performance. I've found the Sierra 120 HPBT to be a poor long range pill although it performs very well at traditional hunting ranges.</p><p></p><p>The Sierra 100 MK is a great bullet, just keep in mind it's construction and intended purpose. Select your shots and you'll be fine.</p><p></p><p>BTW, it's great to hear from another 25 calibre fan. We are a bit of an oddity in this genre of shooting discipline.</p><p></p><p>Good luck to you.</p></blockquote><p></p>
[QUOTE="Holmes, post: 27486, member: 457"] My favourite 257 MK load also uses I-4350, 53.0 grains which yields 3475 fps from my rifle. (WW brass & Fed 210s) I've also worked with H-4831SC, I-4831, and R-22. These all yield higer velocities and will stay at the .5" mark, but the I-4350 shoots noticeably tighter, 3s if I do my part. The 100 grain Sierra MK has performed well for me on goats at 4-550 yards. All shots have been broadside lung whacks. Entrance and exit wounds have been impressive. Whether the bullet is fragging or tumbling upon impact with the ribs is unknown as I have not recovered and bullets. I would not use this bullet for big bone shots. On prairie rats, the MK simply bores a clean hole through the little beasts at ranges beyond 400 yards. A center of mass hit is required to insure immediate termination. Lack of homogenous density I suppose. Nosler 85 gr BT and Hornady 75 V-Max offer much better rat destruction, but the wind raises hell with them beyond 500. You might consider working with the Barnes 100 XLC and another consideration would be the Berger 115 VLD. Both offer great BCs. I'm experimenting with the Berger now and may use it this year on goats. Another Sierra I've had great luck with is their 117 SBT. It whacks goats like the Hammer of Thor with very predictable terminal performance. I've found the Sierra 120 HPBT to be a poor long range pill although it performs very well at traditional hunting ranges. The Sierra 100 MK is a great bullet, just keep in mind it's construction and intended purpose. Select your shots and you'll be fine. BTW, it's great to hear from another 25 calibre fan. We are a bit of an oddity in this genre of shooting discipline. Good luck to you. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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.257" 100g Matchkings out of 25/06 Rem.
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