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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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<blockquote data-quote="M9Powell" data-source="post: 1234209" data-attributes="member: 97934"><p>I suspect 1 in 8" might be overkill for the 195s. 8.5" should be good to go. 9" might do. Speed is also a factor in achieving enough rpms to stabilise. Since I'm going with a Savage action instead of a Remington, I'm thinking about intially chambering in 7mm Weatherby. I'm too tight to pay Weatherby's price for brass though. I'll make them from Win 300 Win mag brass. When the throat goes south, I'll extend the neck on the brass up into the burnt out throat & Weatherby freebore by making a reamer with 7 mm Weatherby specs but a longer neck. I love the concept of you're 7 mm practical, but the Accuracy International mags I'm going to be using are 3.715" on the outside. I think inside length is going to be around 3.600"-3.675" & I'm going to have to mill the action out a bit just to accommodate them. I like a long neck more than getting a couple of grains more powder. My theory is a long neck will extend barrel life & help accuracy by holding the long 195 straighter as it bridges the freebore. I've shot many 1,000 yds competitions with the 30-338 shooting against 300 Win mag. I always felt the longer neck gave me more barrel life & a bit more accuracy.</p></blockquote><p></p>
[QUOTE="M9Powell, post: 1234209, member: 97934"] I suspect 1 in 8" might be overkill for the 195s. 8.5" should be good to go. 9" might do. Speed is also a factor in achieving enough rpms to stabilise. Since I'm going with a Savage action instead of a Remington, I'm thinking about intially chambering in 7mm Weatherby. I'm too tight to pay Weatherby's price for brass though. I'll make them from Win 300 Win mag brass. When the throat goes south, I'll extend the neck on the brass up into the burnt out throat & Weatherby freebore by making a reamer with 7 mm Weatherby specs but a longer neck. I love the concept of you're 7 mm practical, but the Accuracy International mags I'm going to be using are 3.715" on the outside. I think inside length is going to be around 3.600"-3.675" & I'm going to have to mill the action out a bit just to accommodate them. I like a long neck more than getting a couple of grains more powder. My theory is a long neck will extend barrel life & help accuracy by holding the long 195 straighter as it bridges the freebore. I've shot many 1,000 yds competitions with the 30-338 shooting against 300 Win mag. I always felt the longer neck gave me more barrel life & a bit more accuracy. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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