The Lord Flashheart
10-12-2017, 10:28 AM
205727
Gents,
In an effort to work out which lube sizing dies to buy I cast a couple of soft slugs from a Lee mold and gently forced them into the muzzle end of my two 30 cal rifles, a tikka 3006 and a sako 308.
The tikka bullet is on the left and as this was my first rifle and I have put around me 3500 rounds through it since I have owned it, I don't know how many the previous owner had fired before I got it, it is well worn.
The groove measurement taken from the bullet is 0.3092" and the nose portion (which was not engraved at all in this rifle but was in the sako ) measured 0.3010".
The bullet from the sako is on the right and measured 0.3082" across the grooves and showed engraving on the bore riding nose portion. Not having a blade micrometer made precise measurement of this last difficult but I think it's almost exactly 0.3000" from what I have been able to tell with wires and micrometer.
My first question is that assuming the throat tikka is similarly larger than the sako would I need to have two "different" bullets ( as in sized differently), one for each rifle, or can I get away with just buying the larger diameter sizing dies ( to suit the enlarged bore) and use that for both?
The second question is whether or not the bore riding nose portion of the bullet needs to be sized to the bore as I understand the groove riding portion needs to be sized to the throat and groove? The forward portion engraves the rifling on the 308 and I am wondering if this might promote leading?
With thanks,
Gents,
In an effort to work out which lube sizing dies to buy I cast a couple of soft slugs from a Lee mold and gently forced them into the muzzle end of my two 30 cal rifles, a tikka 3006 and a sako 308.
The tikka bullet is on the left and as this was my first rifle and I have put around me 3500 rounds through it since I have owned it, I don't know how many the previous owner had fired before I got it, it is well worn.
The groove measurement taken from the bullet is 0.3092" and the nose portion (which was not engraved at all in this rifle but was in the sako ) measured 0.3010".
The bullet from the sako is on the right and measured 0.3082" across the grooves and showed engraving on the bore riding nose portion. Not having a blade micrometer made precise measurement of this last difficult but I think it's almost exactly 0.3000" from what I have been able to tell with wires and micrometer.
My first question is that assuming the throat tikka is similarly larger than the sako would I need to have two "different" bullets ( as in sized differently), one for each rifle, or can I get away with just buying the larger diameter sizing dies ( to suit the enlarged bore) and use that for both?
The second question is whether or not the bore riding nose portion of the bullet needs to be sized to the bore as I understand the groove riding portion needs to be sized to the throat and groove? The forward portion engraves the rifling on the 308 and I am wondering if this might promote leading?
With thanks,