New 300 owner

[avnut]

Hello all,I'm new to this forum.I've been lurking here a few times.I liked the idea of the 300 fireball,so i sold the 223 barrel from my 18 year old AR and ordered up a model 1 sales 16" carbine barrel.I ordered the barrel the first week of jan and just recieved it last week.I installed the barrel on a new A3 upper reciever.While I was waiting for the barrel I made up some brass from both once fired 223 and new 221 brass.I loaded a few rounds up today and took it out back to try out for the first time.I used Hornady 190 gr bt bullets with 8.3gr 2400.I stuck an old steel tube weaver 4x scope on it that I had laying around.I got the scope dialed in quickly.Recoil was even less then I imagined.The 300 shot well,granted I was only 25 yd back and not supported,but it cut a ragged hole in the target.Only problem was the action wont cycle.Its short stroking.I'm using a carbine stock and buffer.Since I'm not going to use the AR for any other calibers,I going to modify it to use subsonic with the 300 fireball.I cut a couple inches off the buffer spring to see if that helps.Anyone esle try this approach?
avnut

[Fudmottin]

The spring is linear rate. But cutting off a few spirals is the conventional way to lighten the buffer spring. You might want to check with Wolf for a lighter spring. You basically just took some preload off. But if that does the job, then you are done.

I run an A2 stock with standard length spring and standard buffer. It hasn't been tested yet by me. The lower is used for both 223 and 300-221 uppers. The 300-221 upper has the port in the pistol position.

Finding time to shoot on a night schedule is tricky. When the sun comes up, I am getting rather tired. Not the best for shooting :-(

[avnut]

I see what you mean about the spring rate.I guess its worth a try to cut the stock spring as they only cost a few bucks.I may check into the Wolff spring anyway.Unfortunately I have to go out of town on a business trip so testing will have to wait a week.
I can dedicate this rifle to the 300 fireball,as I already have a AR SBR in 14.5" 223 and one in 11.5" 6x45.
I wish I could get a suppressor for it,but "not happening "in this state.
I hated Night schedules,glad I dont work them anymore.