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Rifles, Reloading, Optics, Equipment
Reloading
Shooting rest while developing loads
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<blockquote data-quote="Bart B" data-source="post: 498329" data-attributes="member: 5302"><p>Regarding first shot from cold bore then shooting several more, here's two examples of reality.</p><p></p><p>First, a .308 Win. at 800 yards. Note shots 1 and 2 were the first two from a cold barrel, The other 18 went in centered about 1/4th MOA higher. All shots fired about 20 seconds apart; that barrel was really hot after the last shot.</p><p></p><p><img src="http://farm4.static.flickr.com/3614/3394146444_2d5f4c3e52_m.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Second, a .30-.338 starting with a cold bore. Alternating each load and firing a shot about every 25 to 30 seconds. After 30 shots, that barrel was also pretty darned hot. The X-ring's 10 inches in diameter.</p><p></p><p><img src="http://farm3.static.flickr.com/2633/4198676118_3ab2c51373_m.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Not a significant change in impact going from cold to hot, at least as I see it.</p></blockquote><p></p>
[QUOTE="Bart B, post: 498329, member: 5302"] Regarding first shot from cold bore then shooting several more, here's two examples of reality. First, a .308 Win. at 800 yards. Note shots 1 and 2 were the first two from a cold barrel, The other 18 went in centered about 1/4th MOA higher. All shots fired about 20 seconds apart; that barrel was really hot after the last shot. [img]http://farm4.static.flickr.com/3614/3394146444_2d5f4c3e52_m.jpg[/img] Second, a .30-.338 starting with a cold bore. Alternating each load and firing a shot about every 25 to 30 seconds. After 30 shots, that barrel was also pretty darned hot. The X-ring's 10 inches in diameter. [img]http://farm3.static.flickr.com/2633/4198676118_3ab2c51373_m.jpg[/img] Not a significant change in impact going from cold to hot, at least as I see it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Shooting rest while developing loads
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