Rem 700ML Bolt Source

[dannoboone]

Other than finding one from a salvage project, is there anyone
making or selling the 700ML bolts? There were no doubt many who
did not clean out the bolts after each shooting session, which could
have created a market for the replacements.

[lwh723]

Brownells sells blued ones for something like $100. Those are the only ones I've ever seen.

[lakeplainshunter]

Jan 7, 2012 15:28:32 GMT -5 lwh723 said:

Brownells sells blued ones for something like $100. Those are the only ones I've ever seen.

Brownells is out of stock and so is Numerich.

[rossman40]

It is a project I'm working on. Looking at a SS or plated 4140 bolt body with a threaded handle TIG welded on. Give me a few months to iron out production.

[ratsnakeboogy]

Jan 8, 2012 17:43:45 GMT -5 rossman40 said:

It is a project I'm working on. Looking at a SS or plated 4140 bolt body with a threaded handle TIG welded on. Give me a few months to iron out production.

Any estimate on price for a stainless?

Don

[jeremylong]

Rossman - Are their any other project details you can discuss yet?

[rossman40]

I'm still on the receiver plans right now which should be into CAD by the end of the week. Then the bolt will go thru the process. Then comes the transition to CAM, where it is trying to determine the exact steps in what order and tooling required. What will be done on a CNC lathe, CNC mill and maybe even a EDM. Basically trying to streamline the manufacturing process to lower set-up cost. The more steps you can do with one set-up the lower the cost (each set-up cost around $150 but if you run 20 pieces that is $7.50 per piece). You could probly do it with a manual lathe and a Bridgeport but the man-hours would be high. Then the little things like do you bore the receiver on a lathe and then hone it to get a good finish or just do it on a EDM machine and not have to do any finishing. Then what material, 4140 your looking at say $14 for metal but as you step up to 416 SS, then 17-4 SS and then 15-5 SS the price almost doubles each step to where a chunk of 15-5 is $75. Then there is tool wear and heat treating cost.

The thing is to use as much "Off-The-Shelf" parts as possible. With the bolt I'm looking at two models, one would be a direct replacement for the 700ML. So all the factory and aftermarket parts like the firing pin assembly (and components) and the Hunter bolt nose would work. The bolt handle would already be threaded so that can save you $50 or more. The other would just be perhaps .250" longer which would require a longer firing pin. The extra length would allow a thicker recoil lug and give some extra length to get the chamber when using the Savage breechplug well past the recoil lug. This would throw a kink into the barrel makers day but I think Pacnor would not have a problem, with McGowen it may require serious explanation and hand holding.

My fear is I'll get this all figured out and then Remington will bring the 700ML back into production.

[rangeball]

Jan 12, 2012 13:50:23 GMT -5 rossman40 said:

My fear is I'll get this all figured out and then Remington will bring the 700ML back into production.

You'd still have to buy the entire gun which would be more expensive then do the smokeless upgrades, don't see them going smokeless. Do you?

[Deleted]

seriously doubt they ever will, there are way too many sitting in closets all fouled up that people will never think about using again...all the fouling left a bad smell in many peoples nostrils....

[jeremylong]

I am sure you already know this but jumping from 4140 to 17-4 is a tooling nightmare.... At least dang sure not as easy. Although no doubt 17-4 is a better metal per say than 416. 416 is the standard.
At least if you could give us a competitively priced 4140 reciever, it would give you time to further refine before jumping into the 17-4 learning curve?.?..

[jeremylong]

Of course the ss is an easier sell though...

The smokeless world just keeps getting more interesting.