Rem700 Bolt Body Diameter Sizes

[fe1]

Are there different sizes in the diameter of Rem 700 bolt bodies for different calibers? If so whats the proper size for a 300 RUM?
Thanks for your knowledge.

 

[Preacher]

.697 for most 300 Ultra mags, but they do and will vary a few .001's...
The majority of the factory bolts are in that range.....

 

[fe1]

Thanks Preacher.Just wanted to be sure I had what I needed.PM incoming.

 

[BigDMT]

They will definitely vary a tiny bit from action to action.

If you plan on having a bolt built;

Measure your action bolt opening at the rear using a good caliper with the bolt removed. Then subtract 0.008" to 0.010" for a good fit with minimal slop. You can go tighter if it is a competition gun, but I would recommend having the bolt raceway reamed out in case the raceway diameter is not consistent throughout the action.

 

[wapiti25]

A caliper is the wrong tool to measure the bore on an action. .008"-.010" is very sloppy.

 

[BigDMT]

Shows how much you know. If you knew how that worked out, you would know that subtracting 0.008"-0. 010" from the raceway diameter measurement only leaves 0.004"-0.005" around any point of the bolt body to the raceway for clearance. any tighter than that and you need to ream the action raceway.

I measured my 722 raceway with my caliper using the inside jaws and the bolt Dave Kiff made for me fits perfectly. So a caliper worked fine for me.

But since you seem to think you are the expert here on this matter, why don't you tell us all how it's "supposed to be done"?

 

[Dans40X]

BigDMT-
How did your caliper fit inside the front receiver ring?
Or, did you "wing it" & guesstimate!

Inaccurate & bass ackwards way to go about it,but glad your bolt fits to your specifications.

 

[Dans40X]

So one could theoretically stick a middle finger into the race way-pull out the digit & mic/scale the diameter to be close enough.

Several ways to skin a cat!

accurate/consistent figures trump guessing in my book

 

[wapiti25]

BigDMT, Have you ever used a telescope gauge and a mic? It is not the only way but miles better than the caliper for measuring the bore.

 

[Erik Cortina]

Can you with deltronic pins?

I believe anyone using the finger method would get the same from their customers.

 

[butchlambert]

So one could theoretically stick a middle finger into the race way-pull out the digit & mic/scale the diameter to be close enough.

Several ways to skin a cat!

accurate/consistent figures trump guessing in my book

Plus 1 Dan!

 

[BigDMT]

So one could theoretically stick a middle finger into the race way-pull out the digit & mic/scale the diameter to be close enough.

Several ways to skin a cat!

accurate/consistent figures trump guessing in my book

whichever works for you fellas. I took many measurements with my inside mic on the front and the rear. Being that a 722 is a repeater, it wasn't hard to mic the front. Also took measurements on the factory bolt to get an idea of how much play I was feeling to start with.

If I had a telescope gauge, I would have definitely used it, but I don't and the caliper worked perfectly. I would not have spent $172 on a new PTG bolt if I wasn't 100% sure about my measurements. Or maybe it was a lucky guess??? Maybe I could make a living at playing the lottery if I am that good at guessing

 

[ridgeway]

An inside mic and calipers are way different. You are confusing them I think. Anyhow, if you used calipers and you let Dave know, he probably took the measurement error into consideration and made an educated guess as to what size you needed. No big deal as long as it works and all is satisfied.

 

[BigDMT]

An inside mic and calipers are way different. You are confusing them I think. Anyhow, if you used calipers and you let Dave know, he probably took the measurement error into consideration and made an educated guess as to what size you needed. No big deal as long as it works and all is satisfied.

NO. the bolt measures exactly what I told them to make. Why are you guys trying to make such a simple task of measuring sound like it's so difficult? It's a very simple thing to measure and just about any Joe Blow can do it if he has half a lick of common sense. Nothing complicated about it.

 

[ridgeway]

Its not that and I agree, its a simple task and not complicated. The tools are going to determine how accurate you want to measure. What the deal is, calipers are good enough to get by, but measuring down to .0001 with them, its not going to happen. Measuring an ID of a hole, the calipers pose a certain amount of error because of the measuring surface on the ID jaws are wide and flat. In the end, calipers are truly not the proper instrument to measure the ID of a hole "accurately"(meaning down to .0001"). Like I said, not a big deal, you used them and it got you by. You are happy and satisfied, that's all that matters.

 

[ridgeway]

An inside mic and calipers are way different. You are confusing them I think. Anyhow, if you used calipers and you let Dave know, he probably took the measurement error into consideration and made an educated guess as to what size you needed. No big deal as long as it works and all is satisfied.

Really don't think Dave would keep good customer relationships if he doesn't send the customers what they ordered.
My bet is Dave keeps skips the educated guesstimating, and sends the customers what they want...

Next time they offer a certification course on how it has become rocket science that takes an engineering degree to measure the diameter of a round hole to put a round peg into, let me know. Until then, I will continue to do it the basic ways.

I'm sure he does. He is in business to make money...so in the end, the customer is always right. Gotta please the paying customer.

 

[butchlambert]

What is your idea of the basic way?

 

[tunacan]

Just order a .699 bolt and get on with it

 

[effendude]

Just when I was going to suggest this discussion be moved to the Advanced Gunsmithing sub section, Donovan comes through with some midwest ingenuity! Darn it!
Scott

 

[BigDMT]

Just order a .699 bolt and get on with it

That's probably a sure bet for a safe 700 bolt measurement. I'd have to check again. but I think my 722 measured .710" and I believe I ordered a .702" bolt body. Nice and tight, but still smooth with minimal slop.

Of course that .702" measurement I gave PT&G was just a guess and Dave must have compensated for my idiotic measuring method to make it fit right. Good thing he knew I was just guessing. I wonder how he guessed I was just guessing? Maybe he's a good guesser too? Or maybe he just guessed that I guessed right and sent me what I ordered? Not sure...I'm confused ??? LOL