Here is my Ruger 1B in 30-06 that has a fixed 4x Leupold scope on it.
Ruger 1B 6mm Remington with 6x-42mm Leupold scope on it. Three shots at 400 yards.
https://grafs.com/products/hornady-brass-250-savage-unprimed-box-of-50?srsltid=AfmBOopUfzjk-2usjZD8msxjdA9TzGoE2OMRQ_p9KQaOJpQ6d3FJ8RXH
As Guy said Hornady is making the great 250 Savage.
Beautiful rifle and with the 26" barrel you should get the best velocity possible out of that rifle in 280 Remington. I had a Remington Model 700 Mountain Rifle in 280 Remington with a 22" barrel. I used 140 gr. Partitions or Solid Base boattail bullets in it (before Accubonds) and they both...
You will love the rifle and the chambering! Beautiful #1 by the way. A 4.5-14x40mm Leupold with the Boone & Crockett reticle would be a great scope on it...........just saying.
When I built a Winchester Model 70 Classic Sporter into a 280AI, I went with a 24" Shilen match grade barrel with a 1-9 twist barrel on it. It shoots very well and I could not be happier. I had thought about doing a 280 Remington, but I am glad I went with the 280AI. Sweetheart of a cartridge.
That rifle should have a 1-9 twist from the factory. The .244 Remington stamped rifles were 1-12 twist. The .244's shot up to 90 gr. bullets well. I passed my 6mm Remington to my son when he got old enough to hunt. It is a Remington Model 600 built in 1964 Centennial Model honoring the...
My Winchester Model 70 280AI I built has a Shilen match grade stainless barrel. It has been great, but that's the one and only rifle I've ever had this done to so I'm probably not much help.