This is a load that I developed for it. This is my go to load for accuracy. If you look at the pictures on my pics page you can see targets listed alphabetically. I took 4 shots with each load in a roundhouse manner. Meaning I shot 1 from load A then 1 from load B and then C etxx then back to a, b, c, etc until all loads were shot. I waited 2 minutes between each shot and 5 minutes between rounds or something like that. If you notice load H,I, and J, gave me the best results. Then I tweaked that to find out that 69.5Gr of H4350 was what my rifle liked the best. I do have a 24" barrel and the chrony was set up 10 feet away from the muzzle. I did not correct the number mathematically. The number I listed above is what the readout on the chrony stated. The Max load using this bullet and this powder according to my reloading book is 70Gr, so please start low and work up if you want to try my load. Know the signs of pressure and be safe.
What kind of powder are you using for your 300 Maverick?
BTW I am fairly new to developing loads, so any help would be appreciated. There is also a pic of my notebook of those loads and their measured group size in red ink. Hopefully you can read it. My writing may need some help.
