Defiance Long Action Chassis: Warning, Stupid Question

[OzzyO20]

I have a stupid question. I’m looking into a 300 NM build on a Defiance Deviant Action before my smith retires. To match my SA he built, I’d like to use a AICS AX chassis. I know I’ll needs the CIP length chassis. Will the Defiance, or any R 700 Long Action pattern fort that matter, fit a CIP chassis?

I know this is a seemingly stupid question but I don’t wanna find out the hard way lol.

Thanks in advance.

 

[kthomas]

You can order the defiance long action for a CIP cut for the mag - make sure you specify that on the build sheet.

As far as fitting in the chassis, it should, as long as its patterned for rem 700 LA foot print.

 

[Birddog6424]

I have a Defiance in 300 NM. It's the LA with the oversized .75 bolt to accommodate the larger bolt face.

I run a CIP mag in the XLR Carbon chassis, but did not need to specify CIP on the action. It runs a 230gr Berger Hybrid at full length without issue.

 

[OzzyO20]

Thanks guys. Norm at Defiance suggested the CIP mag cut in the bottom. The real confusion for me was CIP chassis VS long action chassis. I know the CIP is magazine related, but I didn't know if the footprint of the action was different for CIP chassis. Never ventured into magnum CIP territory and wanted to get it right before I order anything. I know in the case of Surgeon their XL action requires a special chassis, but it sounds like the Defiance should drop into any 700 LA chassis, and the CIP is the cut for the magazine.

 

[308pirate]

Another stupid question: why is your gunsmith not figuring this out for you?

 

[OzzyO20]

Because I didn't ask him to.

 

[Birddog6424]

Length won't be an issue for you. The CIP mag is plenty long, you won't come anywhere near the end of it. It accommodates much longer rounds than the 300 Norma.

 

[Sonic Crack]

IIRC on Defiance LA, a Seekins mag cut is what they like to use for folks running CIP length mags

 

[OzzyO20]

My real concern, and stupid question, was if the Remington 700 long action footprint works in a CIP length chassis. As in I didn't know if dimensionally the action for a CIP was longer than a Long Action.

Plus the short, medium, and long action thing threw me on the Defiance site. I'm used to Remington 700 actions so I know a short action fits a short action 700 chassis, etc. This will be my first full custom action and CIP cartridge build. So I'm just trying to learn as much as I can before I get going. Yea, I could of had my smith do it all, but I like to understand and learn about what I'm having built.

 

[Dirty D]

Call me crazy buuuuut maybe you could ask Defiance.

 

[Birddog6424]

My real concern, and stupid question, was if the Remington 700 long action footprint works in a CIP length chassis. As in I didn't know if dimensionally the action for a CIP was longer than a Long Action.

Plus the short, medium, and long action thing threw me on the Defiance site. I'm used to Remington 700 actions so I know a short action fits a short action 700 chassis, etc. This will be my first full custom action and CIP cartridge build. So I'm just trying to learn as much as I can before I get going. Yea, I could of had my smith do it all, but I like to understand and learn about what I'm having built.

The standard R700 long action will function just fine with the CIP length mag. Worst case scenario you may have to notch out the feed ramp a bit. Which takes all of 10 minutes.

Bare in mind, these actions also accommodate the 300 RUM and 338 Lapua, which is a fair bit longer than the 300 Norma Mag. That's one of the perks of the Norma. It's incredibly efficient, and the larger case diameter allows it to be a little shorter, eliminating some of these load and mag length issues.

 

[OzzyO20]

Call me crazy buuuuut maybe you could ask Defiance.

Norm suggested the CIP cut in the Long Action with the .750" bolt. When I asked about the CIP AICS AX chassis, he said it should work. Seeing as how it'd be months and months to get a stock worked up from Manners, I figured I'd ask here instead of relying on 'should.'

Birddog, thanks again for your input. The main reason I'm going with the Defiance and not a 700 LA are concerns my smith has about how thin the bolt face is with a R700 LA with a Lapua bolt face. He also had some concerns about the recoil lug. He felt like overall a custom action build around a bigger bolt would be the safest/best route to go.

I just didn't know if a long action would bolt into a CIP chassis, as silly as that sound. I know it's more about the mag cut I the chassis and mag length you gain with CIP, but in the off chance that it was also a larger action, I wanted to make sure.