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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Slow Model 700 7mm Rem Mag?
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<blockquote data-quote="MagnumManiac" data-source="post: 2821266" data-attributes="member: 10755"><p>Unfortunately, if you have a rough chamber, burrs or a rough bore, you are going to pressure out before reaching top velocity…it happens.</p><p>My Win Mod 70 EW in 338WM is just like your 7RM, slow and pressures out remarkably quickly and ran a good 200fps slower than any of my 4 other 338WM rifles. The bore in it was very rough, so I ran a lead plug with fine lapping compound for 5 strokes one way and 5 back. This is what the borescope showed before lapping it and after.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2821266, member: 10755"] Unfortunately, if you have a rough chamber, burrs or a rough bore, you are going to pressure out before reaching top velocity…it happens. My Win Mod 70 EW in 338WM is just like your 7RM, slow and pressures out remarkably quickly and ran a good 200fps slower than any of my 4 other 338WM rifles. The bore in it was very rough, so I ran a lead plug with fine lapping compound for 5 strokes one way and 5 back. This is what the borescope showed before lapping it and after. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Slow Model 700 7mm Rem Mag?
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