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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6mm Creedmoor barrel twist?
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<blockquote data-quote="Hugnot" data-source="post: 3095542" data-attributes="member: 115658"><p>My 8 twist 6mm CM is capable of producing fine accuracy with the cheap (inexpensive) Barnes Match Burner, 105 grain hollow point bullet and a variety of 4350 powders. The 105 Barnes Match Burner is one of the least expensive 105 grain hollow point boat tail bullets and is one of the shortest at 1.20 inches. </p><p></p><p>Should lighter (less weight) bullet having low form factors and velocities in the 3300 fps range be wanted an 8 twist would be a good selection. The lighter hi velocity plastic tipped bullets would extend point blank ranges on small targets and produce more expansion vs. ice pick effects.</p><p></p><p>In addition to fine accuracy, easily available small rifle primers may be used. CCI 41's work with extruded powders like the 4350's and the hotter Rem 7 1/2 is a good choice for ball powders like Staball 6.5. Cheap once fired 6.5 Creedmoor Federal brass necked down & turned to .268.</p><p></p><p>[ATTACH]567932[/ATTACH]</p><p></p><p>Velocities were about 3000 fps. 5 shot</p><p></p><p>Practicality is always a good consideration when making a selection. I hope to try the Hornady 108 grain ELDM's at 1000 next month. The 6mm Dasher is a common caliber used at the 1,000 yard BR match at a local range, probably using 105's or close to that. I would select a 7.5 twist for the longer 105 Berger or similar.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 3095542, member: 115658"] My 8 twist 6mm CM is capable of producing fine accuracy with the cheap (inexpensive) Barnes Match Burner, 105 grain hollow point bullet and a variety of 4350 powders. The 105 Barnes Match Burner is one of the least expensive 105 grain hollow point boat tail bullets and is one of the shortest at 1.20 inches. Should lighter (less weight) bullet having low form factors and velocities in the 3300 fps range be wanted an 8 twist would be a good selection. The lighter hi velocity plastic tipped bullets would extend point blank ranges on small targets and produce more expansion vs. ice pick effects. In addition to fine accuracy, easily available small rifle primers may be used. CCI 41's work with extruded powders like the 4350's and the hotter Rem 7 1/2 is a good choice for ball powders like Staball 6.5. Cheap once fired 6.5 Creedmoor Federal brass necked down & turned to .268. [ATTACH alt="IMG_1702 (2).JPG"]567932[/ATTACH] Velocities were about 3000 fps. 5 shot Practicality is always a good consideration when making a selection. I hope to try the Hornady 108 grain ELDM's at 1000 next month. The 6mm Dasher is a common caliber used at the 1,000 yard BR match at a local range, probably using 105's or close to that. I would select a 7.5 twist for the longer 105 Berger or similar. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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6mm Creedmoor barrel twist?
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