Author Topic: Chamfered Bolt Mod  (Read 105 times)

Offline Jayhawker

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Chamfered Bolt Mod
« on: September 08, 2019, 12:26:27 AM »
In a previous thread Charles McKinley recommended that I go to Rimfire Central and read about the chamfered bolt modification. So I did. Here is the link.

https://www.rimfirecentral.com/forums/showthread.php?t=251031

I don't have a disk sander, but I was going to get one and do it. I wanted to get an used bolt to to do it to first, in case I messed it up. So I went to the place where I always go to by used gun parts, Ebay. They had some really gnarly ones for $40 delivered. They looked like they were recovered from a land fill. Ebay recommended the JWH basic bolt. It has a radiused back edge, so it's going to impact the hammer at the same point as the Rimfire Central Chamfer modification. 

After figuring tool costs and other, buying a JWH basic bolt was by far the most cost effective option and is also the lazy way to go. So I did it.

I put 170 rounds through my rifle (with the JWH basic bolt installed) today using CCI SV and had ZERO malfunctions.


Online eaglescouter

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Re: Chamfered Bolt Mod
« Reply #1 on: September 08, 2019, 02:32:18 AM »
I did mine, radius and polish many years ago.
No regrets.
Make yourselves good scouts and good rifle shots in order to protect the women and children of your country if it should ever become necessary.
--Lord Baden-Powell
Scouting for Boys (1908)

Offline Jayhawker

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Re: Chamfered Bolt Mod
« Reply #2 on: September 08, 2019, 02:37:09 PM »
I shot another 176 rounds today with one stovepipe.

The running total is 346 rounds fired and one stovepipe.
« Last Edit: September 08, 2019, 04:31:19 PM by Jayhawker »

Offline Quinncannon

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Re: Chamfered Bolt Mod
« Reply #3 on: September 08, 2019, 08:30:20 PM »
Good information!
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Offline TaosGlock

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Re: Chamfered Bolt Mod
« Reply #4 on: September 08, 2019, 09:36:05 PM »
One of my 10/22’s got a chamfered bolt so I could cycle sub sonic ammo.
Works great too. 👍
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Offline Jayhawker

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Re: Chamfered Bolt Mod
« Reply #5 on: September 15, 2019, 11:14:28 PM »
Another 253 rounds with two stove pipes this weekend. Then, I gave my rifle a good scrubbing.

The running total is 599 rounds of CCI SV fired and three stove pipes with the radiused bolt back.

I'm pretty sure that I had more frequent stove pipes using CCI MINI MAGS with the stock bolt configuration.

Appleseed is next weekend in Hot Springs.