Building a 470 Capstick

[Jefferry404]

Mr. Crank,
I oversized the barrel 31/1000 in the barrel channel and I think lengthen the breech a tad. So more meat for the Von Mises stress. Matrix will be building the rifle and does not mind a bit of sanding
I have a photo from ur post in the other nameless forum of the measured cz550 mag barrel dimensions and I have 375 takeoff barrels but the dimensions seem to still vary and I adjust with the B&C channel measurements.
Below is the finished dimensions. I think there is about 1” more at either end.

They must of got busy, as I think was 3 weeks.
However, we were experimenting with duplicating from a 3D printed barrel, so maybe that got their attention. Unfortunately, even with a .375” support rod thru the center, there was still to much flex, so they contoured by hand.

 

[JD Noblin]

A few years ago I built a 470 Capstick using a Weatherby Mark V Safari 375 Wby that was laying around. Spun off the 375 barrel and sent it to Mcgowen to make a 470 barrel with the same profile. Had to tweak the mag box to handle the straight wall 470 case. No other changes had to be made. Cerakoted all the metal and repainted the stock. It fed and ran great with 500gr Northfork softs and flatnose solids. Took a buff at 30 yards, giraffe at 55 yards and a surprise eland at 240 yards.

The 470 Capstick is a great round. On the buff, the second shot was a solid as he was departing directly away from us. The Northfork flatnose solid entered near his tail and was recovered in his neck muscles about 6" away from the base of the skull...amazing penetration.

The only issue I ever had with the 470 was finding good brass. I had to use Quality Cartridge brass and it was.......less than ideal. Brass was thin and only lasted 1-2 shots....would not hold either the resize or neck tension. For cases that did hold the resize, the bullet would often spin inside the case.

 

[358 Norma]

I chose this stock blank for the 470 Capstick build!

 

[Riflecrank]

JDN,
QualCart is all I ever found for proper headstamp, saved for inspectors.
I used Norma and Hornady basic cylindrical mostly.
Great work using your 470 Capstick for DG and PG.
Great North Fork bullets.

 

[DaBill]

https://www.ariaballisticengineering.org/product/470-capstick. Is a great source for 470 Capstick ammunition at reasonable prices.