Anyone have a link to some 300 gr jacketed projectiles ?
Once I get my brass collected I thought I might try 230's and 300's
Thanks
Moderator: MudBug
BamBam wrote:Anyone have a link to some 300 gr jacketed projectiles ?
Once I get my brass collected I thought I might try 230's and 300's
Thanks
BamBam wrote:Thanks all for the extra info, it will give me more options to play with once I get farther into the 450b.
What kind of max velocities have been reached with the 300 XTP Mag ? Any separation issues ?
I am going to start out slower with 4227 as I have about 10lbs of it left, but will eventually play around with other powders and look for upper limits
(My MMMV and I alone am responsible for anything I do with anything I reload, etc .... )
Hoot wrote:BamBam wrote:Thanks all for the extra info, it will give me more options to play with once I get farther into the 450b.
What kind of max velocities have been reached with the 300 XTP Mag ? Any separation issues ?
I am going to start out slower with 4227 as I have about 10lbs of it left, but will eventually play around with other powders and look for upper limits
(My MMMV and I alone am responsible for anything I do with anything I reload, etc .... )
According to Quickoad. Loading the 300 XTP Mag to 2.21 inch OAL and using a maximum SAAMI recommended charge of 38.8gr, the bullet will leave a 20" muzzle at 2011 fps and blow 1 gr of unburned powder out of the barrel since as already discussed, H4227 is a little slow. With the shorter, 16" carbine barrel, that velocity drops to 1929 fps and you blow 2gr of unburned powder out of the barrel. In my work with the 300gr XTP Mag, I could only load it out to 2.21 inches OAL before it ran into the rifling. A barrel with a longer cut leade could allow you to load it out to the full 2.26 OAL, though that would only allow using so little more powder as to net you about 20 more fps.
Hoot
Return to Reloading for the 450b
Users browsing this forum: No registered users and 9 guests