Well where do I start?

A good friend of mine is purchasing a new rifle in .270 Win. He wants one of the Remington semi auto's in Stainless Synthetic.

He would like me to load his ammo for him which for me is great I get to learn about another caliber plus I will get the rifle for a few months to work up a good load for it.

I know I am going to have to FL resize any fired brass in a semi which does not bother me too much. I do though have many questions about powder speeds and pressure. I am thinking that I should use the chrony with a few different kinds of factory loads and see what they do speed wise. With this rifle having a gas operated action I suspect there would be issues with too much(damage to rifle) or not enough gas pressure( jamming non cycling action)

I figure there are quite a few people here who have experence with this kind of thing and could give me a few pointers to start me in the right direction.

Thanks

You'd be better off using a small base sizing die. Powder choices: no problems with the 4350s. MAKE SURE BRASS IS TRIMMED PROPERLY. I wouldn't seat the bullet too close to the lands either. 30-40 thousandths off or more.

quote:

Originally posted by Doc:
You'd be better off using a small base sizing die. Powder choices: no problems with the 4350s. MAKE SURE BRASS IS TRIMMED PROPERLY. I wouldn't seat the bullet too close to the lands either. 30-40 thousandths off or more.

Thanks I was thinking 4350 and 414 I also had thoughts about IMR 4064 but it might be just a tad fast then again it could be perfect. This is going to be fun more range time and that is a good thing.

for the semi auto I would use smallbase die.
I have been using a load of imr4064 140gr hornady hpbt's. loaded to 2750f/s about the right pressure.
Also consider a crimp die I like the factory die from lee.
Dave

In the .270 try the 4350 first, and watch pressures, and cycling/function. Accuracy is secondary to function in a semi... nature of the beast.

quote:

Originally posted by 308Sako:
In the .270 try the 4350 first, and watch pressures, and cycling/function. Accuracy is secondary to function in a semi... nature of the beast.

Good info thanks I think the trick is going to be getting the pressure right first then looking for accuracy. I dont expect that my buddy will ever make a shot over 200 yards as he is a walking/stalking hunter and most of the time his shots are pretty close at moving game.

quote:

Originally posted by hivelosity:
for the semi auto I would use smallbase die.
I have been using a load of imr4064 140gr hornady hpbt's. loaded to 2750f/s about the right pressure.
Also consider a crimp die I like the factory die from lee.
Dave

Thanks I will try this one as I have 4064 here currently.

Call me paranoid, but I don't shoot anyone elses reloads or provide my reloads to anyone. Too much liability involved, especially with high pressure loads.

60 grains of 4831 is the all time load with a .270. 130 gr. bullet.