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Rifles, Reloading, Optics, Equipment
Reloading
What could cause group outliers?
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<blockquote data-quote="SuperBruce" data-source="post: 2738269" data-attributes="member: 120544"><p>I have what seems like a good load developed using 178 ELDM bullets with TS 15.5 in Lapua brass but I'm experiencing odd fliers. SD is ~10 fps over a large number of loads and velocity is averaging 2590 fps. On average, out of 4 shot groups (odd number but it's how many my internal mag holds so thats usually what I do with this rifle) I'll have 3 making up a 2/3 MOA (or less) group and the other shot is 1.5 to 2 inches away. Sometimes this is 2 of 4 touching, sometimes is just a good group for all 4 shots. This rifle will generally shoot just under 1 MOA groups with a good load: no match rifle but fliers are not the norm. However, it is a bit picky of a barrel: not all projectiles shoot well in it.</p><p></p><p>I'm inclined to chock it up to one (or more) of a the following causes:</p><ol> <li data-xf-list-type="ol">These are pandemic projectiles so perhaps I may have a not-so-good batch.</li> <li data-xf-list-type="ol">My jump maybe in a sensitive spot (only tried one jump so far), although I do check the CBTO on all rounds and they're quite consistant showing a variance of about 1 to 1.5 thousandths.</li> <li data-xf-list-type="ol">These are just not a good bullet for this picky barrel.</li> </ol><p>I'm interested to know what more experienced people think. Thanks in advance.</p></blockquote><p></p>
[QUOTE="SuperBruce, post: 2738269, member: 120544"] I have what seems like a good load developed using 178 ELDM bullets with TS 15.5 in Lapua brass but I'm experiencing odd fliers. SD is ~10 fps over a large number of loads and velocity is averaging 2590 fps. On average, out of 4 shot groups (odd number but it's how many my internal mag holds so thats usually what I do with this rifle) I'll have 3 making up a 2/3 MOA (or less) group and the other shot is 1.5 to 2 inches away. Sometimes this is 2 of 4 touching, sometimes is just a good group for all 4 shots. This rifle will generally shoot just under 1 MOA groups with a good load: no match rifle but fliers are not the norm. However, it is a bit picky of a barrel: not all projectiles shoot well in it. I'm inclined to chock it up to one (or more) of a the following causes: [LIST=1] [*]These are pandemic projectiles so perhaps I may have a not-so-good batch. [*]My jump maybe in a sensitive spot (only tried one jump so far), although I do check the CBTO on all rounds and they're quite consistant showing a variance of about 1 to 1.5 thousandths. [*]These are just not a good bullet for this picky barrel. [/LIST] I'm interested to know what more experienced people think. Thanks in advance. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
What could cause group outliers?
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