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Tennessee Gun Owners Forums
Reloading
25 creedmoor
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<blockquote data-quote="Jcalder" data-source="post: 5894755" data-attributes="member: 12150"><p>Decided to build a 25 creedmoor. I know a few of you guys have asked for progress, and I'll do my best to keep it updated. Preferred barrel blanks made the barrel, with .150" freebore vs the standard offering. 1:7 twist, 20" long. Eventually, I'll have a suppressor on it. Used a tikka action, they're relatively cheap and I can get prefit barrel. I was able to do all the work myself. Trijicon credo 2.5-15 scope [ATTACH=full]225707[/ATTACH][ATTACH=full]225706[/ATTACH][ATTACH=full]225708[/ATTACH]</p><p></p><p>Initial testing had me looking for pressure. There's not a ton of info out there, but I knew I needed to start around 40gr of h4350 with the 134 eldm. I ended up have a slight ejector mark at 44.5. I do know some guys got over 3000 fps, but I'm sure their barrels were much longer. I did shoot one at 45gr and had an ejector mark as well Wasn't bad, wasn't a swipe, but was there I'll not go over 44gr at this point.[ATTACH=full]225709[/ATTACH]</p><p></p><p>I did try a group at 42gr during my pressure test load and was happy with the accuracy, but the speed wasn't hardly there. I may come back to it, but we'll see. [ATTACH=full]225710[/ATTACH]</p><p></p><p>Decided to start at 43.5 and 44gr. 44 wasn't great, 43.5 was much better but I was on a spongy bench. The one "flyer" ruined the group, but it's promising. [ATTACH=full]225711[/ATTACH]</p><p></p><p></p><p>Went home and shot off a better bench. Results certainly changed. Here's 12. [ATTACH=full]225712[/ATTACH]</p><p></p><p>I made a slight scope adjustment, and shot 3 more. [ATTACH=full]225714[/ATTACH]</p><p></p><p></p><p>Currently I'm at .020 off the lands. That's usually where I start and have had good luck. It was suggested to try .050, so that'll be the next test group.</p></blockquote><p></p>
[QUOTE="Jcalder, post: 5894755, member: 12150"] Decided to build a 25 creedmoor. I know a few of you guys have asked for progress, and I'll do my best to keep it updated. Preferred barrel blanks made the barrel, with .150" freebore vs the standard offering. 1:7 twist, 20" long. Eventually, I'll have a suppressor on it. Used a tikka action, they're relatively cheap and I can get prefit barrel. I was able to do all the work myself. Trijicon credo 2.5-15 scope [ATTACH type="full" alt="IMG_9254.jpeg"]225707[/ATTACH][ATTACH type="full" alt="IMG_9255.jpeg"]225706[/ATTACH][ATTACH type="full" alt="IMG_9257.jpeg"]225708[/ATTACH] Initial testing had me looking for pressure. There's not a ton of info out there, but I knew I needed to start around 40gr of h4350 with the 134 eldm. I ended up have a slight ejector mark at 44.5. I do know some guys got over 3000 fps, but I'm sure their barrels were much longer. I did shoot one at 45gr and had an ejector mark as well Wasn't bad, wasn't a swipe, but was there I'll not go over 44gr at this point.[ATTACH type="full" alt="IMG_9272.png"]225709[/ATTACH] I did try a group at 42gr during my pressure test load and was happy with the accuracy, but the speed wasn't hardly there. I may come back to it, but we'll see. [ATTACH type="full" alt="IMG_9264.jpeg"]225710[/ATTACH] Decided to start at 43.5 and 44gr. 44 wasn't great, 43.5 was much better but I was on a spongy bench. The one "flyer" ruined the group, but it's promising. [ATTACH type="full" alt="IMG_9289.jpeg"]225711[/ATTACH] Went home and shot off a better bench. Results certainly changed. Here's 12. [ATTACH type="full" alt="IMG_9306.jpeg"]225712[/ATTACH] I made a slight scope adjustment, and shot 3 more. [ATTACH type="full"]225714[/ATTACH] Currently I’m at .020 off the lands. That’s usually where I start and have had good luck. It was suggested to try .050, so that’ll be the next test group. [/QUOTE]
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