New long range reloader here. Loaded many rounds of pistol in my past to present. Now loading 6.5 CM with new Peterson LR Brass with 139gr Lapua Scenar. Snagged the OAL info off the VV reloading data which recomended 2.717". Sitting at a max load with N555 at 42.6 gr, the powder is all the way up to the shoulder in the case. I see the 139gr bullet is seated way down inside. Is this considered correct? Meaning as safe? Please reference pic. Thanks guys!
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6.5 Creedmoor Seating Depth?
- Thread starter RaptorAddict
- Start date
I would say yes, considering its a only creedmore and not a crazy load.
Have you measured how far off the lands you are exactly? If the book gives a OACL its usually safe as long as its not jammed. Typically guys are running a few hundredths off.
Either way its good to know where your lands are with that bullet for future reference.
Have you measured how far off the lands you are exactly? If the book gives a OACL its usually safe as long as its not jammed. Typically guys are running a few hundredths off.
Either way its good to know where your lands are with that bullet for future reference.
Not neccesarily bad info although I imagine its confusing as fuck for a new loader. I dont think the OP is looking for that rabbit hole.
Fair enough lol, sorry I'm a ALL or NONE kinda personality. Gotta go full send!
Still learning the "lands" stuff. Just went off reloading data and when I cycle it, it's nice and smooth. I had a feeling I couldn've seated a bit longer, but I figured I'd start with this. Just doing 10 different development load charges starting from max load downward by .2 incriments.
I'm actually that guy. I've been doing mass research to eventually get that perfect rabbit hole at 100 yd zero. Still got a lot to learn and tools to buy.
Another good way to find the lands on a rifle without tools.
I used this method. Funny thing is, Vihtavuori recommended 2.717 OAL and my actual chamber length (using the video guide) showed 2.717 OAL. Could this be that VV is Finnish as is the SAKO? LOL! I can't imagine backing it down any further as my loads have an OAL of 2.715. Hope I did the procedure correctly but I reviewed 3 times and I'm sure I did it right.
EDIT: Need to go back and do it again. I didn't put a flat end on the cleaning rod. So I think the threaded end was cupping the bullet tip which would make it just a hair longer.
So after my revised measurement to the lands, it came to 2.867. I dialed back .020 to seat at 2.847. The first first rounds I made I seated to the OAL of 2.717 which was specified by VV powder data. Is jump at .15 a bit much and dangerous? Or can I actually shoot that? I’m very new at reloading rifle so please forgive me for all the greenhorn questions. Thanks again fellas!
I have never, ever chased the lands with my seating depths. My loads are seated to OAL's that correspond to magazine lengths.
Something some of us may not be considering, although I MUST at my age; is the simple fact that some of our ammo may outlive us.
I.e., It may end up in the hands of younger folks we all know and love, and if any of that stuff differs in any great manner from factory ammo, we may be putting time bombs in their hands. If it's unsafe in the basic brown wrapper rifle, it ought not ever be in a position to be used without our personal supervision. That's our families I'm talking about and matters like responsible gun ownership have a huge bearing on these sorts of questions.
PSA ends.
Greg
Something some of us may not be considering, although I MUST at my age; is the simple fact that some of our ammo may outlive us.
I.e., It may end up in the hands of younger folks we all know and love, and if any of that stuff differs in any great manner from factory ammo, we may be putting time bombs in their hands. If it's unsafe in the basic brown wrapper rifle, it ought not ever be in a position to be used without our personal supervision. That's our families I'm talking about and matters like responsible gun ownership have a huge bearing on these sorts of questions.
PSA ends.
Greg
So I am trying to get an idea of seating depth that a 6.5 seems to like from various shooters. What I think is faltering this study are guns where a long bullet, say tighter than .040 off the lands will not fit in the mags of various guns. My gun mag will accept a bullet .010 off the lands, many will not, and thus they pursue a setting that will fit the mag and do not follow past cartridge accuracy finds at closer settings. Are we finding new accuracy or accommodating a gun design?
