Terminus Actions

#1,451
Now that some time has passed and these actions are a bit more mainstream, I'm curious to know if there are any scope mounting options for the Terminus bolt pattern that utilize the one-piece ring and base combo that Talley kinda made famous? I know Hawkins Precision and Leupold also have their variants now too.

Any variants that fit Terminus actions? Specifically the SA Apollo (if that matters)

Cheers
 
#1,460
It's probably mentioned somewhere in this mega thread, but is there any negative impact to the performance or setup to get a QC Action and thread on a full threaded/non-QC barrel?

I know the set screws would need to be removed, but other than that, would there be any issues?
 
#1,461
LuvDog said:
It's probably mentioned somewhere in this mega thread, but is there any negative impact to the performance or setup to get a QC Action and thread on a full threaded/non-QC barrel?

I know the set screws would need to be removed, but other than that, would there be any issues?
Click to expand...
What’s the advantage of the full thread on a quick change action?
 
#1,463
hairy_pineapple588 said:
What’s the advantage of the full thread on a quick change action?
Click to expand...
There’s no advantage. It’s just you don’t need to have a quick change barrel to use the quick change action. The full thread barrels work too except they will need to be torqued properly because a demotion the set screws aren’t used.
 
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#1,467
look at the tenon print on the website. I think it mentioned about .002 head space difference between QC and torqued barrels. Depends who chambers the barrel may or may not make a difference.
 
#1,468
Anyone know of any long-term detriments to frequently swapping barrels on the QC action?

I currently run 4 different caliber barrels on my QC action for various tasks, and I have been concerned that the high frequency of barrel swaps may cause issues in the long run. Anyone know of issues that may arise with the action threads from these changes? I am careful to follow all protocols on proper barrel replacement each time.

Along the same line, is there an issue with routine removal and replacement of the action screws to move the action from a competition chassis back to a fiberglass stock? I am careful to make sure no cross threading occurs and I use proper torque values each time.

I am not an engineer so I don’t know if this is a legitimate concern or if I’m completely off base.
 
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#1,469
Screach said:
Anyone know of any long-term detriments to frequently swapping barrels on the QC action?

I currently run 4 different caliber barrels on my QC action for various tasks, and I have been concerned that the high frequency of barrel swaps may cause issues in the long run. Anyone know of issues that may arise with the action threads from these changes? I am careful to follow all protocols on proper barrel replacement each time.

Along the same line, is there an issue with routine removal and replacement of the action screws to move the action from a competition chassis back to a fiberglass stock? I am careful to make sure no cross threading occurs and I use proper torque values each time.

I am not an engineer so I don’t know if this is a legitimate concern or if I’m completely off base.
Click to expand...
As long as you don’t destroy the threads in the process, it should be fine
 
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#1,470
Screach said:
Anyone know of any long-term detriments to frequently swapping barrels on the QC action?

I currently run 4 different caliber barrels on my QC action for various tasks, and I have been concerned that the high frequency of barrel swaps may cause issues in the long run. Anyone know of issues that may arise with the action threads from these changes? I am careful to follow all protocols on proper barrel replacement each time.

Along the same line, is there an issue with routine removal and replacement of the action screws to move the action from a competition chassis back to a fiberglass stock? I am careful to make sure no cross threading occurs and I use proper torque values each time.

I am not an engineer so I don’t know if this is a legitimate concern or if I’m completely off base.
Click to expand...
You deserve another Terminus Zeus QC action. Just do it!
 
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#1,471
Screach said:
Anyone know of any long-term detriments to frequently swapping barrels on the QC action?

I currently run 4 different caliber barrels on my QC action for various tasks, and I have been concerned that the high frequency of barrel swaps may cause issues in the long run. Anyone know of issues that may arise with the action threads from these changes? I am careful to follow all protocols on proper barrel replacement each time.

Along the same line, is there an issue with routine removal and replacement of the action screws to move the action from a competition chassis back to a fiberglass stock? I am careful to make sure no cross threading occurs and I use proper torque values each time.

I am not an engineer so I don’t know if this is a legitimate concern or if I’m completely off base.
Click to expand...
What do you mean by high frequency and routine removal? Weekly changing out barrels?
 
#1,472
Dolomite said:
What do you mean by high frequency and routine removal? Weekly changing out barrels?
Click to expand...
I may swap barrels a couple times on a range trip to test different loads. Then for storage I keep the action separate from the barrels in my case due to size restrictions.

Stock wise, I may swap stocks once or twice a month.

@Milf Dots Lol. I thought about it as I was writing out my post. But I’d have to buy a LA first then I’d be out $3k :LOL:
 
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#1,473
Well this certainly jammed up my action mid shoot today.

IMG_5210.jpeg
 
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#1,475
BuildingConceptsllc said:
Is that the roller on the cocking piece?
Click to expand...
Yep, pin is gone, roller jammed between the shroud and cocking ramp (I’m guessing), and wouldn’t let me unlock the bolt. Look. Lot of shaking and wriggling and eventually the roller plopped onto my lap and the bolt was functional action. I guess I should email about a replacement pin.
 
#1,478
Hennig said:
Yep, pin is gone, roller jammed between the shroud and cocking ramp (I’m guessing), and wouldn’t let me unlock the bolt. Look. Lot of shaking and wriggling and eventually the roller plopped onto my lap and the bolt was functional action. I guess I should email about a replacement pin.
Click to expand...
If he says what caused it or how to prevent it can you post about it please?
 
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#1,481
Hey, as an update on my previous question about wearing out the threads, Joel gave a response this morning:


“As long as you lubricate the threads with any type of grease, you will never wear out the threads on the receiver or barrel. The receiver has a Rockwell hardness of 42, and a DLC treatment over the steel which boosts the surface RC a few points.

Joel”
 
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#1,482
Screach said:
Hey, as an update on my previous question about wearing out the threads, Joel gave a response this morning:


“As long as you lubricate the threads with any type of grease, you will never wear out the threads on the receiver or barrel. The receiver has a Rockwell hardness of 42, and a DLC treatment over the steel which boosts the surface RC a few points.

Joel”
Click to expand...
I have greased the extensions with: 'Loctite 234227 LOC51048 Moly Paste Anti-Seize Compound'. I use area 419 chamber protectors to keep them clean. No affiliation with area 419.

www.area419.com

Chamber and Thread Protector

As it becomes more popular to have multiple barrels and bolts for rifles, we are seeing an alarming number of barrels stored with nothing to protect the chamber or chamber threads. Well, that ends today. The Area 419 Chamber and Thread Protector is milled from 6061T aluminum and simple screws on...
www.area419.com www.area419.com
 
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#1,487
hairy_pineapple588 said:
Anyone shooting 6 dasher or 6 gt on a Zeus? What mags are you using?
Click to expand...
Dasher with the mdt metal br mags. I put the extensions on them, tuned the lips, deburred and polished the lips. The berger 105 hybrids are a little shitty to feed, ya gotta run the bolt hard. The Hornady 108 eld match bullets feed like butter
 
#1,500
hairy_pineapple588 said:
I’m in this decision currently. Have enough saved for another action. I’m highly considering another Zeus QC but the allure of an impact is there. What made you decide on a second Zeus?
Click to expand...
I have one qc and two bolts. I picked up another action with a 3rd bolt face instead of buying a 3rd bolt. Motivation was to be able to keep two calibers online.
I'd rather stick to one platform now barrels can swap bolts etc.
 
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