Lapping the Locking Lugs

When accurizing a bolt action rifle, it's necessary to lap the locking lugs so they bear evenly on the lug bearing surfaces. Larry Potterfield, Founder and CEO of MidwayUSA, demonstrates this process using a Mauser 98 receiver.

http://www.midwayusa.com/

Category:

Howto & Style

Tags:

• MidwayUSA
• Mauser
• 98
• rifle
• parts
• receiver
• model
• how-to
• howto

[jasonhenson1991]

It don't think it will affect headspace aslong has you do this process before you mount a barrel.

[TheHiddenPart]

"before you mount a barrel", yes, correct.

[GeneralG1810]

@futureusmc100 I know this reply is late but there could be a few reasons for that. If your reloading your own ammo you could have the projectile too close to the lands, or perhaps all your bolt needs is a good dismantle and lube, if theres surface rust get some fine emery like 800 grit or higher to remove it. If its still hard take it to a gunsmith theres obviously a bigger issue

[futureusmc100]

@148scalemodeling rem. 700

[148scalemodeling]

@futureusmc100 what rifle?

[futureusmc100]

will this fix the rifle if the bolt is hard to open and close?

[Treblaine]

@BenjaminStreifel Maybe I phrased it poorly, I was just wondering your personal opinion if a statement of fact is too much. There is no such thing as a "wrong" opinion, maybe a biased opinion but you must feel one way or another, the rifles may be equal but they can't be the same.

[BenjaminStreifel]

@Treblaine I have no idea. I'm sure you could start many arguments on firearms forums with that kind of question though.

[Treblaine]

@BenjaminStreifel ah, so while the cartridge case is still clasping the bullet, I see. Thanks for the explanation.

Which do you think was the easiest action to make and keep accurate? Mauser, Mosin-Nagant, even Lee-Enfield?

[BenjaminStreifel]

@Treblaine Bolt actions seems to lock "tight" when closed by hand, but when the cartridge is at its pressure maximum (generally 10's of 1000's of psi), any tiny movements in the locking surfaces may change the way the cartridge sits in the chamber, the way the bullet engages the rifling, etc. Improving the contact area would minimize the movement, particularly if they're lapped together (as opposed to individually polished) so they're fit exactly to one another.

[Mack488]

It doesnt say Mauser actions are harder than shit, it took me over an hour to do mine.

[FOXnewsAlien]

what is with the music Larry?