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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help With Heavy Bolt Lift on Mauser Action
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<blockquote data-quote="Hugnot" data-source="post: 2570809" data-attributes="member: 115658"><p>Possibly, your brass does not have enough head space. You might consider grinding down the top of the shell holder used for that one rifle and use that shortened shell holder to bump back the shoulder of the brass. <u>Use appropriate cautions not to create excessive head space. Full length size ammo. </u> Trim brass to spec.</p><p></p><p>The Mauser probably is of the M98 type that is a controlled feed action. This means the rounds must be fed from the magazine to enable the extractor groove on the brass to fit inside the non rotating extractor. By droppng a round into the chamber & closing the bolt the non-rotating extractor is forced over the rim of the cartridge causing much resistance. On miltitary issue M98's it is impossible or difficult to close the bolt on a round not fed from the magazine. The military M98's are usually loaded using a stripper clip. Single loads are done by placing a round in the magazine on top of the follower. Complete firing pin spring compression is done upon bolt closing - added resistance. </p><p></p><p>Upon inspecting the Mauser bolt, a transferse slot may be seen on the left side bolt lug. This is provided to allow the ejector mounted on the left side of the rear of the action to contact the base of the fired or unfired round as the bolt is retracted. A bolt stop is included with the ejector assembly on the left rear side of the receiver. There is no plunger in a M98 type bolt face - just an extractor slot.</p><p></p><p>Periodic bolt stripping is a real good idea for inspection, cleaning, and testing for ammo chamber fit. For an unaltered M98 the safety is placed in the upright postion , the bolt lock on the left side of the bolt shroud depressed & the threaded bolt turned out with the shroud, cocking piece, firing pin & spring from the bolt body. For an altered M98 type used with a left side safety, for a low mounted scope, bolt dissasembly requires retracting the cocking piece and blocking the cocking piece from the back of the bolt shround. I use a dime (coin). Attached to a fixture on my bench is a rebar wire loop that I use to pull on bottom of the cocking piece and when the cocking piece is pulled back far enough the dime is shoved between cocking piece & bolt shroud. The bolt catch is depressed & the dime, shroud, firing pin, spring, and cocking piece can be turned out from the bolt body. Re-assembly requires pulling back on the cocking piece to allow rotation and repositioning the bolt body with the cocking piece and removal of the dime.</p><p></p><p>Ammo/chamber fit may be testedUsing the stripped bolt. Give all parts a real good cleaning including the inside of the bolt. </p><p></p><p>The 6.5-06 is a "wild cat" cartridge and may not be completely in spec with standard .25-06, .270W & .30-06 ammo being chambered by an independent gunsmith that decided on minimum head space for crush fit fire forming. My several 6,5-06's including a M98 type are chambered for minimum head space specs. I use a separate shortened shell holder for each rifle. </p><p></p><p>I use the same dime to disassemble Rem 700 bolts by shoving the dime in a slot machined in the left side of the cocking piece to allow cocking piece to be held apart from bolt body so firing pin assembly may be turned out of bolt body.</p><p></p><p>M98's represent a remarkable achievement in rifle design</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2570809, member: 115658"] Possibly, your brass does not have enough head space. You might consider grinding down the top of the shell holder used for that one rifle and use that shortened shell holder to bump back the shoulder of the brass. [U]Use appropriate cautions not to create excessive head space. Full length size ammo. [/U] Trim brass to spec. The Mauser probably is of the M98 type that is a controlled feed action. This means the rounds must be fed from the magazine to enable the extractor groove on the brass to fit inside the non rotating extractor. By droppng a round into the chamber & closing the bolt the non-rotating extractor is forced over the rim of the cartridge causing much resistance. On miltitary issue M98's it is impossible or difficult to close the bolt on a round not fed from the magazine. The military M98's are usually loaded using a stripper clip. Single loads are done by placing a round in the magazine on top of the follower. Complete firing pin spring compression is done upon bolt closing - added resistance. Upon inspecting the Mauser bolt, a transferse slot may be seen on the left side bolt lug. This is provided to allow the ejector mounted on the left side of the rear of the action to contact the base of the fired or unfired round as the bolt is retracted. A bolt stop is included with the ejector assembly on the left rear side of the receiver. There is no plunger in a M98 type bolt face - just an extractor slot. Periodic bolt stripping is a real good idea for inspection, cleaning, and testing for ammo chamber fit. For an unaltered M98 the safety is placed in the upright postion , the bolt lock on the left side of the bolt shroud depressed & the threaded bolt turned out with the shroud, cocking piece, firing pin & spring from the bolt body. For an altered M98 type used with a left side safety, for a low mounted scope, bolt dissasembly requires retracting the cocking piece and blocking the cocking piece from the back of the bolt shround. I use a dime (coin). Attached to a fixture on my bench is a rebar wire loop that I use to pull on bottom of the cocking piece and when the cocking piece is pulled back far enough the dime is shoved between cocking piece & bolt shroud. The bolt catch is depressed & the dime, shroud, firing pin, spring, and cocking piece can be turned out from the bolt body. Re-assembly requires pulling back on the cocking piece to allow rotation and repositioning the bolt body with the cocking piece and removal of the dime. Ammo/chamber fit may be testedUsing the stripped bolt. Give all parts a real good cleaning including the inside of the bolt. The 6.5-06 is a "wild cat" cartridge and may not be completely in spec with standard .25-06, .270W & .30-06 ammo being chambered by an independent gunsmith that decided on minimum head space for crush fit fire forming. My several 6,5-06's including a M98 type are chambered for minimum head space specs. I use a separate shortened shell holder for each rifle. I use the same dime to disassemble Rem 700 bolts by shoving the dime in a slot machined in the left side of the cocking piece to allow cocking piece to be held apart from bolt body so firing pin assembly may be turned out of bolt body. M98's represent a remarkable achievement in rifle design [/QUOTE]
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