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The Range
Ammo & Reloading
What did you do in the reloading room today?
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<blockquote data-quote="diggler1833" data-source="post: 3983391" data-attributes="member: 48072"><p>That 2.2 SD is flat out impressive for such a large cartridge...it's still really impressive if it were a .223.</p><p></p><p>Don't blame the flyer on you man! I've gone down that rabbit hole before and found that I was on the ragged edge of a hotrod load that also had the ability to turn into a sled if the weather wasn't right. No way a 1 FPS variation caused that thing to go crazy...maybe it could have been an ogive issue where it was .002-.003 long? Who knows, but I'm sure you'll figure it out.</p><p></p><p>******</p><p></p><p>Keeping in spirit with the thread: I shot my 6.5 Grendel with 108gr Scenar and IMR-8208XBR combo yesterday. Best five was .577" with a single digit SD...but the velocity was wayyyyy too low at 2,370. I got it up to 2,530 FPS with 1 MOA accuracy and another single digit SD...but was just starting to see pressure signs on the case head.</p><p></p><p>Prepped 10 pieces of brass this morning. Will try that highest charge weight with another .010 jump and .020 jump.</p><p></p><p>If it stays 1 MOA I'm fine with that in an AR as long as I can get that accuracy at distance.</p></blockquote><p></p>
[QUOTE="diggler1833, post: 3983391, member: 48072"] That 2.2 SD is flat out impressive for such a large cartridge...it's still really impressive if it were a .223. Don't blame the flyer on you man! I've gone down that rabbit hole before and found that I was on the ragged edge of a hotrod load that also had the ability to turn into a sled if the weather wasn't right. No way a 1 FPS variation caused that thing to go crazy...maybe it could have been an ogive issue where it was .002-.003 long? Who knows, but I'm sure you'll figure it out. ****** Keeping in spirit with the thread: I shot my 6.5 Grendel with 108gr Scenar and IMR-8208XBR combo yesterday. Best five was .577" with a single digit SD...but the velocity was wayyyyy too low at 2,370. I got it up to 2,530 FPS with 1 MOA accuracy and another single digit SD...but was just starting to see pressure signs on the case head. Prepped 10 pieces of brass this morning. Will try that highest charge weight with another .010 jump and .020 jump. If it stays 1 MOA I'm fine with that in an AR as long as I can get that accuracy at distance. [/QUOTE]
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