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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 SAUM w/ 20” barrel
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<blockquote data-quote="sable tireur" data-source="post: 1514068" data-attributes="member: 27307"><p>I guess I want to add some actual shooting/reloading experience for this idea.</p><p></p><p>I've been using the 6.5 RSAUM (6.5 GAP 4S) since its creation. So call it 10 years approximately. We shot it in Tac and Long Range competitions as well as hunting deer, elk and antelope. We used it in longer barrels (30"+) and shorter barrels (19" up to 22"). Trying to anticipate any of the negativity surrounding this cartridge, we often waited until dusk (not hunting) to see what type of muzzle flash we were going to experience with these shorter barrels. Balancing the powder burn rate with the bullet weight, we were able to achieve minimum flash while maintaining higher velocities yielding viable remaining energy at the target. All powders will provide some amount of muzzle flash but this was easily usable in failing light.</p><p></p><p>20" barrel, 6.5 SAUM, Norma 130 gr. Golden Target over Re-25 and later Re-26 powder. Energy remaining at 800 yards is calculated at 1,050 ft/lbs. approximately. </p><p></p><p>Switch this to the Berger 140 gr. Elite Hunter and although the velocity is lower, the remaining energy at 800 yards is nearly the same by just a few feet.</p><p></p><p>Dropping down to the lighter bullet and smaller capacity cartridge may net higher velocities but suffers on energy at the 800 yard mark, yielding 350 ft/lbs. approximately. </p><p></p><p>Currently I have a couple of 6.5 PRC rifles built, one 20" for a suppressor and the other is 28" for longer range contests. Based on the same concept, the 20" barrel and the 130 grain Norma performs within nearly the same parameters as the 6.5 SAUM. </p><p></p><p>Enjoy your project!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="sable tireur, post: 1514068, member: 27307"] I guess I want to add some actual shooting/reloading experience for this idea. I've been using the 6.5 RSAUM (6.5 GAP 4S) since its creation. So call it 10 years approximately. We shot it in Tac and Long Range competitions as well as hunting deer, elk and antelope. We used it in longer barrels (30"+) and shorter barrels (19" up to 22"). Trying to anticipate any of the negativity surrounding this cartridge, we often waited until dusk (not hunting) to see what type of muzzle flash we were going to experience with these shorter barrels. Balancing the powder burn rate with the bullet weight, we were able to achieve minimum flash while maintaining higher velocities yielding viable remaining energy at the target. All powders will provide some amount of muzzle flash but this was easily usable in failing light. 20" barrel, 6.5 SAUM, Norma 130 gr. Golden Target over Re-25 and later Re-26 powder. Energy remaining at 800 yards is calculated at 1,050 ft/lbs. approximately. Switch this to the Berger 140 gr. Elite Hunter and although the velocity is lower, the remaining energy at 800 yards is nearly the same by just a few feet. Dropping down to the lighter bullet and smaller capacity cartridge may net higher velocities but suffers on energy at the 800 yard mark, yielding 350 ft/lbs. approximately. Currently I have a couple of 6.5 PRC rifles built, one 20" for a suppressor and the other is 28" for longer range contests. Based on the same concept, the 20" barrel and the 130 grain Norma performs within nearly the same parameters as the 6.5 SAUM. Enjoy your project!:) [/QUOTE]
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6.5 SAUM w/ 20” barrel
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