Quote Originally Posted by mark5pt56 View Post
I had a .223 700 LTR w/ 1n9 and it ran the 77 loads well. I don't recall the velocity on them but they were a tad warm. I have also had no problem with a Colt 20" 1n9 running 262 loads. Bottom line, it will depend on velocity, factors that come in are barrel quality and or wear. You stabilize anything in a sewer pipe if it goes fast enough.

I would suggest maybe picking up a stock 700 which will more than likely have a 1n9, try the heavier loads and the 68/69 ones. If it doesn't work well with the 75/77's use the lighter ones and rebarrel later on.

FN makes a .223 also, it's 1n9 as well. Both can be customized later with stock options, detachable mag kits, etc. Poke around the boards and you may find one for sale-you have to be quick at times though.
Mark - For your 223 700 LTR 1/9 that you ran the 77 gr loads in, did it have the stock 20" barrel length? Or did you have a custom barrel installed (longer than 20")?