snox801
Well-Known Member
Sorry I never saw it written. Just discussed in person. I may have seen it written but never paid attention to it. I learned about it when I called a place that made specific line for ti action. Guy was very informative.
Defiance Ti-X
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snox801
Well-Known Member
Phil what TI actions did you run? Just curious now. As we all know not all ss is the same and I know not all titanium is the same.
I am also curious about the difference in manufactures different action.
I am also curious about the difference in manufactures different action.
snox801
Well-Known Member
I believe one of pierce engineering's employees is on this site maybe he could chime in. With as many as they pump out he would have a good idea if it's a common complaint.
akmtnhnt
Well-Known Member
Good point, rather it not be in the action.
I work for Pierce Engineering, we don't really get complaints with people using our actions. I tell anyone who's concerned that stainless/steel actions will typically handle higher pressures before the bolt gets hard to open. Keeping your lugs lubed and having the full action DLC'd helps. However, you have to be running above SAAMI max pressure to see any issues. I tell people who are worried about it to just get a stainless action. If you run factory ammo or load within SAAMI max, you'll never have an issue.
We have several high end rifle builders who love our actions and they push them hard. I personally haven't tested the same barrel on a stainless action and a Ti action, but it's something I've planned to do. Run both up to pressure using the same barrel, brass, bullets, powder, etc and see where they top out with heavy bolt lift. Heavy bolt lift is WELL north of SAAMI pressures just so everyone is aware.
We have several high end rifle builders who love our actions and they push them hard. I personally haven't tested the same barrel on a stainless action and a Ti action, but it's something I've planned to do. Run both up to pressure using the same barrel, brass, bullets, powder, etc and see where they top out with heavy bolt lift. Heavy bolt lift is WELL north of SAAMI pressures just so everyone is aware.
Looking forward to your results, thanks for the time and trouble.
snox801
Well-Known Member
So if I read this right. By the time you get heavy bolt drag wouldn't more pressure be seen? Flatter primers, brass flow, usually one of the others show up before you reach sticky bolt. So it truly would not matter.
I am ok with people choosing to lean on them hard say a flat primer and run it.
If that's what Phil is doing I don't blame him but we should make it clear to other readers.
That way someone who would not run loads that high doesn't decide to change direction on what they want. Those people can would not give up a thing other than weight and money to get a lighter rifle.
I lean on mine also and that's fine.
DirtNap35
Well-Known Member
Yes there would be other signs of pressure. One I like to watch for is ejector swipe and will typically happen before hard bolt. I think anybody reading this going to hard bolt is near the last sign of pressure before catastrophic failure. The only time I will intentionally take it to that level is when I do my first pressure test ladder.
I have no pressure indications now, at an additional 200fps. Here is some of my brass from the n570 ladder. Remember, I stopped there in awe of the speed, not needing more for any reason. Very tight grouping at 40fps less than where I stopped tells me I wasn't on the edge, based on experience.
snox801
Well-Known Member
Those do look in great shape. Definitely could go hotter.
That's what keeps me from getting the Mega version.
Those loads were not compressed with n570...
