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Long Range Hunting & Shooting
338 edge Freebore
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<blockquote data-quote="ATH" data-source="post: 1450439" data-attributes="member: 1656"><p>Modifying the bolt stop was easy as it is a side bolt stop design. I popped the pin holding it in and used a file to remove material from the surface of the bolt stop which impacts the bolt, allowing the bolt to travel rearward further. I'd hold it back in the action and eyeball things to known when the bolt could come back far enough to get behind the cartridge. It really was not hard at all. Modifying a standard R700 internal bolt stop is harder.</p><p></p><p>Modifying the feed opening of the action to allow the rounds to feed up from the magazine was much harder. From memory about 1/4" had to be removed from the rear of the mag well opening, and I did this with a Dremel. It took a lot of time (worked on it every evening for a week) and care to do it right with such ad hoc tooling. But the final product is awesome. This needs to be done first, before the bolt stop, so you can model the rounds feeding up.</p><p></p><p>I did not have to modify the ejection port, as Stiller already has a modification from the R700 design to accommodate ejection of longer rounds. I can't speak for your action.</p></blockquote><p></p>
[QUOTE="ATH, post: 1450439, member: 1656"] Modifying the bolt stop was easy as it is a side bolt stop design. I popped the pin holding it in and used a file to remove material from the surface of the bolt stop which impacts the bolt, allowing the bolt to travel rearward further. I'd hold it back in the action and eyeball things to known when the bolt could come back far enough to get behind the cartridge. It really was not hard at all. Modifying a standard R700 internal bolt stop is harder. Modifying the feed opening of the action to allow the rounds to feed up from the magazine was much harder. From memory about 1/4" had to be removed from the rear of the mag well opening, and I did this with a Dremel. It took a lot of time (worked on it every evening for a week) and care to do it right with such ad hoc tooling. But the final product is awesome. This needs to be done first, before the bolt stop, so you can model the rounds feeding up. I did not have to modify the ejection port, as Stiller already has a modification from the R700 design to accommodate ejection of longer rounds. I can't speak for your action. [/QUOTE]
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