Large Round Bolt Knobs?

[Southern Custom]

I'm looking to change the bolt knob on my Bergara HMR Pro. While I've never used or tried one, it's always seemed to me that an oversized sphere would be a nearly ideal shape for running a bolt fast. Anarchy Outdoors is about the only option for this gun without doing some surgery and machining threads on the stock bolt handle.
Anyone else out there have experience running a large smooth ball knob and any downside to it?

 

[Huskydriver]

AI owners have been running them for years

 

[st1650]

Unless the bolt handle is arc swept I think you’ll hit your scope on a R700 footprint with a big ball knob.

 

[Changed]

Call Robert Gradous.

 

[spife7980]

Ive got the ptg ball on a rem 700 with a straight bolt handle and I didnt think I would like it when I got it but I actually really do after using it.

 

[FatBoy]

Without knowing your thread pitch, you may check this site out.

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

 

[Steel head]

I’d like to get a ball for my nucleus
I asked Ted about it.
He didn’t seem interested

 

[Southern Custom]

Now that's a good tip. Never considered McMaster for something like this. Unfortunately Bergara uses a fixed knob on the bolt handle but Anarchy makes a replacement threaded handle.

 

[Threadcutter308]

I have an Ultimatum Deadline that I absolutely love. I didn’t think I’d like a big round bolt knob ( ), but I do.

Deadline Short Action

The Ultimatum Deadline Bolt action has a Remington 700 short action footprint (Some adjustments might be required. Visit our FAQ section to get more information regarding the R700 footprint here).. It takes savage small shank pre-fit type barrels (1-1/16x20tpi). Current lead time: 10 weeks...

www.ultimatumprecision.com

 

[One1Bravo]

I have an Ultimatum Deadline that I absolutely love. I didn’t think I’d like a big round bolt knob ( ), but I do.

Deadline Short Action

The Ultimatum Deadline Bolt action has a Remington 700 short action footprint (Some adjustments might be required. Visit our FAQ section to get more information regarding the R700 footprint here).. It takes savage small shank pre-fit type barrels (1-1/16x20tpi). Current lead time: 10 weeks...

www.ultimatumprecision.com

Same. I like this action more and more every day.