CKweigand
Member
So here’s the deal everyone. I’m developing a load for my new Model 70 In 30-06. I have a box of Sierra 165 Gr. SBT (#2145) I’m using a Hornady Seating Die in a RCBS RC...the main intent is to use this bullet for hunting. However I’m very conscientious about accuracy. I want to be able to cover a 5 shot group with a quarter at 100yds...(that’s the goal anyways )
The brass case is an UNPRIMED and POWDERLESS once fired Remington Peters, which has been FL sized with a Hornady FL Die and trimmed to 2.488” then chamfered and deburred.
My logic was I’ll seat the bullet to SAAMI max spec. (3.34”) I’ll then take the said cartridge and insert it into my rifle....in theory, as I close the bolt the bullet being “pressed” back into the case by the rifling would give me my max seating depth for said specific bullet.
In doing so I when I extracted the cartridge I came up with 3.308”...I was able to close the bolt easily with very slight resistance but I was well expecting that. This tells me that I can’t go any longer than 3.308” for this particular rifle and bullet combination
Now with all this being said I don’t have the Hornady Comparator Tool nor do I have the RCBS Precision Headspace Gauge (although they are on my wish list)...so as of right now poor man has poor ways and I’m measuring from tip of bullet to cartridge base with my dial calipers...I know I really should be going off the datum point but I currently do not have the tooling to do so.
Am I right in thinking this method is just fine? Is my logic sound??
I don’t have a Sierra loading manual as of yet however i do have one pre ordered from midsouth supply. Whenever they realease the 6th edition. So if anyone has a older one do you mind looking up what they call for OAL for this bullet for me??
I was thinking of backing away from the rifling about .015-.020” but then I remembered Nosler I believe recommended somewhere between .048-.050” IIRC.. I know it’s a different Manufacture but didn’t know if there was any particular rule of thumb in the matter. Any wisdom, guidance, criticism is all welcomed. Thanks everyone!
The brass case is an UNPRIMED and POWDERLESS once fired Remington Peters, which has been FL sized with a Hornady FL Die and trimmed to 2.488” then chamfered and deburred.
My logic was I’ll seat the bullet to SAAMI max spec. (3.34”) I’ll then take the said cartridge and insert it into my rifle....in theory, as I close the bolt the bullet being “pressed” back into the case by the rifling would give me my max seating depth for said specific bullet.
In doing so I when I extracted the cartridge I came up with 3.308”...I was able to close the bolt easily with very slight resistance but I was well expecting that. This tells me that I can’t go any longer than 3.308” for this particular rifle and bullet combination
Now with all this being said I don’t have the Hornady Comparator Tool nor do I have the RCBS Precision Headspace Gauge (although they are on my wish list)...so as of right now poor man has poor ways and I’m measuring from tip of bullet to cartridge base with my dial calipers...I know I really should be going off the datum point but I currently do not have the tooling to do so.
Am I right in thinking this method is just fine? Is my logic sound??
I don’t have a Sierra loading manual as of yet however i do have one pre ordered from midsouth supply. Whenever they realease the 6th edition. So if anyone has a older one do you mind looking up what they call for OAL for this bullet for me??
I was thinking of backing away from the rifling about .015-.020” but then I remembered Nosler I believe recommended somewhere between .048-.050” IIRC.. I know it’s a different Manufacture but didn’t know if there was any particular rule of thumb in the matter. Any wisdom, guidance, criticism is all welcomed. Thanks everyone!
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