Originally Posted by
Shortbox4x4
I was doing testing with 338 Lapua back around 2009. I put a barrel on a older single shot 112V J series. That one gun is my test rifle. I set it up with out the barrel nut so the breech diameter of the barrel at the receiver was 1.250” o.d and being a single shot it gave me more confidence with the bolt lug engagement vs. Rem. 700’s where you have to open up/rework the feed ramp which I don’t like. That makes that bottom lug area have less support.
I opened up a mag bolt face to 338 Lapua and polished the extractor so it would snap over the rim. It chambered and ejected empty cases with no issues.
When Savage came out with they’re factory rifle....yes it’s a large shank but the receiver o.d. And lug area is the same. So it’s not any stronger per say.
The large shank is 1.120 vs. the 1.055” thread on the small shank (which is only about .005” smaller than a Remington thread. If you use the factory Savage barrel nut even on a large shank that still limits you to a 1.120” breech diameter. By not using the barrel nut like I did at least I could go up to a 1.250” breech diameter. Heck you can even go up to 1.350” diameter on the barrel. I’ve done 1.3” before on a Savage.
That all being said it was for testing I did prior to PSR1. If I was going to have a dedicated 338 Lapua or Norma I’d build it on a bigger receiver.
Later, Frank
Bartlein Barrels
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