Was at a buddy's place yesterday to send a few down range. The results were not encouraging. A load that had shot reasonably well for years just doesn't do it anymore. Afterward,we used his borescope to have a look at the rifling and found there was little left to look at on the breech end. With that, the decision to replace the barrel is pretty much made.
Since major surgery is required, I'm also going to make some changes and chamber the replacement tube in 300 Win. FYI - The old Krieger is in 7mmRM on a SS Remington action. The bullet of choice will probably be a Berger 215/230 hybrid or perhaps a Sierra 210/220 MK or something similar. Probably won't be using VLD's because I could never get them to shoot like they should. I could never get them to shoot fast and accurate at the same time. I'm becoming partial to the Hybrids based on what some fellow shooters have accomplished with them in the 6mm and 6.5mm calibers they have been shooting.
Most of the details of the rebuild are already determined including the 'smith, barrel brand, taper and length, etc. plus some other mods to be made during the blueprint. However, at the risk of sounding amateurish, there are some questions I would like to ask of those who shoot a 300Win. They are:
A) Given the above bullet choice', what twist rate have current shooters been using and are you satisfied with that rate? If you had to do it over, what would you change to? I've got 1 in 9 written down but wonder if this is over cooking the recipe?
B) Regarding the reamer/chamber, would one want more leade to the rifling with this cartridge? To allow for seating the bullet longer and/or for more case volume with this cartridge? If so, how much over the SAAMI spec? I'll get a reamer made if necessary.
Increased leade is something I wished I had done way back when, with the 7mm because the 168 and 180 VLD's I've beenshooting had to be seated fairly deep in order to chamber and shoot well. The old barrel actually shot VLD's best with about .080" freebore.
I would like this re-barrel to be able to live up to the full potential of the 300.
Thank you for your input.
Beandog
Since major surgery is required, I'm also going to make some changes and chamber the replacement tube in 300 Win. FYI - The old Krieger is in 7mmRM on a SS Remington action. The bullet of choice will probably be a Berger 215/230 hybrid or perhaps a Sierra 210/220 MK or something similar. Probably won't be using VLD's because I could never get them to shoot like they should. I could never get them to shoot fast and accurate at the same time. I'm becoming partial to the Hybrids based on what some fellow shooters have accomplished with them in the 6mm and 6.5mm calibers they have been shooting.
Most of the details of the rebuild are already determined including the 'smith, barrel brand, taper and length, etc. plus some other mods to be made during the blueprint. However, at the risk of sounding amateurish, there are some questions I would like to ask of those who shoot a 300Win. They are:
A) Given the above bullet choice', what twist rate have current shooters been using and are you satisfied with that rate? If you had to do it over, what would you change to? I've got 1 in 9 written down but wonder if this is over cooking the recipe?
B) Regarding the reamer/chamber, would one want more leade to the rifling with this cartridge? To allow for seating the bullet longer and/or for more case volume with this cartridge? If so, how much over the SAAMI spec? I'll get a reamer made if necessary.
Increased leade is something I wished I had done way back when, with the 7mm because the 168 and 180 VLD's I've beenshooting had to be seated fairly deep in order to chamber and shoot well. The old barrel actually shot VLD's best with about .080" freebore.
I would like this re-barrel to be able to live up to the full potential of the 300.
Thank you for your input.
Beandog
