I have a 209x50 and it shoots great. i did some horse swapping, and got 2 tc factory barrels,24" blued with factory sights. One is a 243, and the other is a 280. 280 is brand new in the box, and the 243 had about 30 rounds through it. I dont know alot about these two calibers, any input would help. and what kind of accuracy can i expect out of factory barrels in these calibers. Should i look into starting to reload or are there a good variety of factory loads for these calibers. Thanks for any input.