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Mod 721 Custom Build Questions....

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Unread 03-11-2011, 06:53 PM
Bronze Member
Join Date: Nov 2010
Location: Helena, MT
Posts: 96
Re: Mod 721 Custom Build Questions....


I think both of your visions are pretty well thought out. Best thing to do now is decide which one is more important before the other. Do you have access to a good carry rifle for hunting? If you have something to get you through for a while hunting, go for the heavy tactical rifle. If not get going on the lighter carry gun. Whichever way you go, figure on best part of a year (or more) before it's ready to start load development. So that might figure into it too. Good luck with whatever you decide.

-- gr8whyt
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Unread 03-15-2011, 04:35 AM
Bronze Member
Join Date: Dec 2010
Location: Hayward, CA
Posts: 69
Re: Mod 721 Custom Build Questions....

Some years ago I used a 721 as the basis of a custom rifle in 280 Ackley Improved. It worked great. The 721 trigger can be honed to a very nice trigger if you don't want to replace it. It looks a bit cheap, but it works. I'd also recommend putting a Sako extractor on the bolt - my stock 721 extractor went south very early in the project. I stocked the rifle with an HS Precision thunbhole stock, which made it very comfortable to shoot both in the field and from the bench. You would need to custom order it from H-S - there are some subtle differences from the standard 700 stock. I put a Hart barrel on my rifle. It shot 140 Nosler Ballistic Tips very well - 1/2" with the best loads. I also used 100 gr Sierras for coyotes. Very effective.

I later sold the rifle to my deer hunting partner and he has made several 400 yd+ shots on deer with it. I have first right of refusal if he ever wants to sell it.

The 721 is a great action for a custom rifle. It is just as good as a 700. Good luck and have fun.
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Unread 03-15-2011, 05:29 PM
Bronze Member
Join Date: Jun 2007
Location: Hanover, PA
Posts: 50
Re: Mod 721 Custom Build Questions....

Can understand you wanting to keep your work local in Montana. But if you want to do a rebuild to a great gun at a reasonable price call Bobby Hart. (570) 752-3655 He will rebarrel with a good Hart barrel, accurize the action, bed your stock or has Bell and Carlson stocks on hand. Bob will talk you through everything and help you decide what is best for you.

Great guy and makes great guns and will become a friend in the process.
Tom Herren
Hanover, PA
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Unread 03-16-2011, 10:07 AM
Bronze Member
Join Date: Mar 2011
Posts: 53
Re: Mod 721 Custom Build Questions....

Thanks Tom, will keep Bobby in mind. From what I've heard, you'd have a hard time going wrong with him!
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Unread 03-24-2011, 12:27 PM
Join Date: Jul 2010
Location: Texas
Posts: 53
Re: Mod 721 Custom Build Questions....

If you really want to update the action, you can get a whole new bolt from PTG with any face you want. Plus you can get all the updated extractor, firing pin, handle stuff you want. Then you can choose whichever cartridge you want.

Otherwise, I would build either a 6.5-284 or a straight 284 since you have a 300 mag in the battery already. I'm starting to think the best combo of cartridges for hunting just about everything out long (up to dangerous game that is) is a 6.5-284 and a 338 win/ultra/edge.
Dale Troutt

Thoroughbred Rifles
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