20in yes. Berger factory ammo, 73s and 77s. Running approx 180fps below box speeds stated from 20in. I loaded 24gr H4895 with a 75eldm on top, 2740. I did punch the throat out with a 223 wylde reamer, but that shouldn't do much. Have bout 200rds on it now. Hasn't sped up a bit.
2.450 with the 75s
The action is the same as the other Tikka rifles. The only difference is the bottom metal and the magazines they use. If I remember correctly, there was a CTR bottom metal inlet on the original Rokstok drop.
Bottom metal inlet, magazine, and mag retention clip on the trigger screw is the only difference between ctr/T3X lite. Well picatinny rail and barrel contour as well.
If you're going to re-stock it, with the new longer oal 223 mags available for T3X lite, not really. The ctr mags are 2.55 internal and do feed like butter. That's a big plus, but they are pretty long and protrude below the stock line like any 10rd aics mag.
Like @khuber84 said, depends what magazine you want to use and if you're happy with the protruding ones. If you're going to buy expensive waters magazines or aftermarket bottom metal figure that into the value equation.
I had a regular stainless lite in a ctr stock and BM for years. I like the ctr stock better and no comparison in the ctr magazine versus the regular little 223 magazines if you handload. Anyway when I got a rokstok I went back to the regular BM and ascension magazines. I'm not saying they're better than a ctr set up but So far they work just fine. If a fella is using regular style BM these are an option.
Tikka T3/T3X .223 Extended COAL Magazine Kit - 4 Rounds - BLACK FRIDAY
This is an extended COAL Magazine Kit for the Tikka T3/T3X Rifles chambered in .223 Remington. This will allow you to have a COAL of 2.55". This kit will include a new mag body and follower to accommodate the 2.55" COAL. Your mag will fit flush just like the factory magazine does. With this...ascensionindustries.co
