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Rifles, Reloading, Optics, Equipment
Gunsmithing
Savage Head Space Question
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<blockquote data-quote="J E Custom" data-source="post: 458299" data-attributes="member: 2736"><p>A go gauge Is the minimum size and gives you 0 head space. So you should place a .002 or </p><p>.003 thousandth shim on the back of the go gauge to set your head space at somewhere </p><p>around .002.</p><p></p><p>Factory ammo is normally smaller than SAAMI spec. so it will chamber. if it won't go without</p><p>effort something is not correct.</p><p></p><p>If it is a pre chambered barrel, there are several things that could be wrong with it. I have seen </p><p>some of these barrels (Pre-chambered) that had tight necks, short necks, no free bore and</p><p>even a short chamber so the smith can head space with the reamer. With the Savage set up</p><p>,as you tighten the nut, dimensions will change, Hence the reason for the shims on the go gauge.</p><p></p><p>Some people use Scotch Tape to shim. I use brass shims stuck to the gauge with grease.</p><p></p><p>Something is not right, because normally if you set the head space to .000 with the go gauge </p><p>Factory ammo will work with little or no resistance on the bolt.</p><p></p><p>Also if the necks are to thick or to long for the chamber this could be some of the problem.</p><p></p><p>The last thing it could be, is the wrong head space gauge or just a bad one.</p><p></p><p>Some times you have to make a chamber cast with ''Cerrosafe'' from Brownells and measure it.</p><p></p><p>Let us know what you find so we can also learn something because just about the time you</p><p>think you have seen it all something else comes along.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 458299, member: 2736"] A go gauge Is the minimum size and gives you 0 head space. So you should place a .002 or .003 thousandth shim on the back of the go gauge to set your head space at somewhere around .002. Factory ammo is normally smaller than SAAMI spec. so it will chamber. if it won't go without effort something is not correct. If it is a pre chambered barrel, there are several things that could be wrong with it. I have seen some of these barrels (Pre-chambered) that had tight necks, short necks, no free bore and even a short chamber so the smith can head space with the reamer. With the Savage set up ,as you tighten the nut, dimensions will change, Hence the reason for the shims on the go gauge. Some people use Scotch Tape to shim. I use brass shims stuck to the gauge with grease. Something is not right, because normally if you set the head space to .000 with the go gauge Factory ammo will work with little or no resistance on the bolt. Also if the necks are to thick or to long for the chamber this could be some of the problem. The last thing it could be, is the wrong head space gauge or just a bad one. Some times you have to make a chamber cast with ''Cerrosafe'' from Brownells and measure it. Let us know what you find so we can also learn something because just about the time you think you have seen it all something else comes along. J E CUSTOM [/QUOTE]
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Savage Head Space Question
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