I have a Ruger 270 Win MK II M77 stainless. What is a safe or max pressure for this gun. I have alot of loading data with pressures calculated, I just don't know if my gun is up to what I am reading

Thanks Scott

The SAAMI max pressure for the .270 is 65,000 PSI.

Assuming your rifle is in good working order, this pressure limit would apply to your rifle.

Scott the Ruger's will handle all pressures for loads listed in modern reloading manuals. They are a well built rifle. As long as you stay withing the bounds of the published loads you should be safe.

One thing I would do is start at the start loads and work your way up. Often maximum accuracy is obtained at 10 percent under maximum listed loads.

The gun is in new condition. Only factory round have been through it and less than 80 rounds total. I was not sure of the stainless having any effect on max pressure. I do have one more question. What should I doot for on bullet to land distance? I have been reloading for my pistols for a long time, but have done very little rifle.

I don't plan in going to max. I am more after the accuracy than speed. I only hunt whitetail and wild hogs. In factory ammo, I have always shot 130 gr.

Your loading manual will have a diagram showing maximum loaded length or give you a maximum loaded length. Often your limited by the magazine length. Important thing is not get the bullet jammed into the rifling. Always cycle your reloads thru your gun to test for functioning.

When you chamber a round if it is to long it will either not fit into the magazine or you will see where the bullet has jammed into the lands of the rifling.

You can smoke a bullet and just seat it in an empty resized case and chamber it. When you bring it back out of the chamber you can see where the bullet has engraved the rifling. Usually Rugers have long enough throat that magazine length will actually determine how deep you seat your bullets.

One rule of thumb on bullet seating is to seat bullets at least one caliber deep in the case.

Thanks for the info. I guess that I had some questions for the max pressure, because I know that some pistols can't handle max pressure. I load for my Redhawk 44 and the loads say not for use in certain guns, and it gives a list. I was not sure about different rifles being limited.

I want to get my Ruger shooting tight. If I miss, I want it to be me, not the gun. I can get pretty good groups right now on factory ammo, but I know that the gun can do better. I use a hands free shooting vise to eliminate human error when sighting in. Then I can hone my shooting skills, knowing that the gun is sighted properly. It may not be the best way. But it works for me.