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Rifles, Reloading, Optics, Equipment
Reloading
have to seat bullets below saami to chamber
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<blockquote data-quote="RT2506" data-source="post: 862190" data-attributes="member: 10178"><p>Seating depth is a relative thing. The saami depth is just a depth that should work with that particular bullet used in the data in any factory action and chamber rifle. When you get into custom cut chambers things can be different. You did not mention what bullet you are using so we can't really tell if your throat is really short or you are using a really long bullet like the Berger VLD. What twist is your barrel? If it is a 9" twist then your throat was probably cut to use 130 gr bullets as the heaviest. You need an 8" twist to shoot most 140 gr bullets. Head space of the chamber has nothing to do with seating depth of the bullet. If you head spaced using the go gauge and the bolt closed and the no go gauge and the bolt would not close then your head space is OK.</p><p></p><p>With any new barrel you will need to work up a NEW load for it. NEVER stick a round in a different rifle or barrel that you were shooting in something else. Always back off the powder and work back up. Yes, if you are jamming a bullet into the lands there could be pressure problems. I would suggest that you back your bullet off the lands 10 thousands and use a starting load of powder and work up in half grains to find the velocity you want and relative accuracy then start playing with seating depth to dial in the accuracy.</p></blockquote><p></p>
[QUOTE="RT2506, post: 862190, member: 10178"] Seating depth is a relative thing. The saami depth is just a depth that should work with that particular bullet used in the data in any factory action and chamber rifle. When you get into custom cut chambers things can be different. You did not mention what bullet you are using so we can't really tell if your throat is really short or you are using a really long bullet like the Berger VLD. What twist is your barrel? If it is a 9" twist then your throat was probably cut to use 130 gr bullets as the heaviest. You need an 8" twist to shoot most 140 gr bullets. Head space of the chamber has nothing to do with seating depth of the bullet. If you head spaced using the go gauge and the bolt closed and the no go gauge and the bolt would not close then your head space is OK. With any new barrel you will need to work up a NEW load for it. NEVER stick a round in a different rifle or barrel that you were shooting in something else. Always back off the powder and work back up. Yes, if you are jamming a bullet into the lands there could be pressure problems. I would suggest that you back your bullet off the lands 10 thousands and use a starting load of powder and work up in half grains to find the velocity you want and relative accuracy then start playing with seating depth to dial in the accuracy. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
have to seat bullets below saami to chamber
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