Thread: 300 Win Mag COAL - Tikka

It’ll generally be the projectile that determines fussiness of jump, try it but make sure you start low as you’ll likely run more pressure seated long a good way to test it is a know safe low charge and try different depths for accuracy then ramp up the powder at the best depth

I’m running 208s with 77.6 grains of 2217 in my T3-based .300 WM.
It has a Bartlein reamed for 3.5 OAL, which is as long as a 208 can be loaded and still extract.
I’m surprised yours will extract at 3.6”, but perhaps the T3X have bigger ports?

Originally Posted by Hurricane

I’m running 208s with 77.6 grains of 2217 in my T3-based .300 WM.
It has a Bartlein reamed for 3.5 OAL, which is as long as a 208 can be loaded and still extract.
I’m surprised yours will extract at 3.6”, but perhaps the T3X have bigger ports?

At 3.6, it wont extract a live round, have to release the bolt and slide it back past the bolt stop a touch.

Originally Posted by Kelton

It’ll generally be the projectile that determines fussiness of jump, try it but make sure you start low as you’ll likely run more pressure seated long a good way to test it is a know safe low charge and try different depths for accuracy then ramp up the powder at the best depth

I gave this a nudge on the weekend, unfortunately only had a handful of magnum primers so just loaded up what i could to see what would happen. Loaded 6 rounds at 3.340 with 74gr of 2217 and another 6 at 3.614 (15 thou off lands) with 74gr of 2217. The 2 groups of 3 at 3.340 were .7 and .6 moa which is pretty normal for this rifle if i do my part. The 2 groups at 3.614 were right on 1 moa, first one a tick over. Untill i can get my hands on some large magnum primers i wont be able to take it any further but seems it certainly prefers the std COAL compared to 15 thou off lands.