Does anyone else have a P14 opened up to 300 win mag?

22to45

CGN frequent flyer
Rating - 100%
38   0   0
In the 90's Bevan King installed a new old stock 303 barrel and chambered it for 300 win mag. It was always accurate. I shot 200 gr .311 speer grand slams, at about 2900 fps. I have not used it for years, but I have some 215 gr Woodleigh RN bullets, and I am going to look for a moose with it this fall.
 
I had a Century Centurion in 300WM that they had just reamed the 30-06 original barrel on. I miss that rifle. It was an easy mod back in the day.
Ditto! M1917 action with a P'14 bolt. Mine had a plastic stock. Loved it but the blind mag was hard to function and I decided I wanted one with a detachable box.
 
Not a P14 - I am sure the one here is M1917 (P17 to some) - re-chambered to 300 Win Mag and set into a synthetic stock. Appears to be an original 30 calibre barrel cut off just forward of the "R" - maker's mark. I suspect you might need to end up with a M1917 magazine (smooth sided) and perhaps an M1917 follower? (They are not the same P14 to M1917, although one appears to fit to the other. The bolt face has been machined for a belted magnum cartridge face. The bolt appears to retain its 30-06 extractor.
 
Not a P14 - I am sure the one here is M1917 (P17 to some) - re-chambered to 300 Win Mag and set into a synthetic stock. Appears to be an original 30 calibre barrel cut off just forward of the "R" - maker's mark. I suspect you might need to end up with a M1917 magazine (smooth sided) and perhaps an M1917 follower? (They are not the same P14 to M1917, although one appears to fit to the other. The bolt face has been machined for a belted magnum cartridge face. The bolt appears to retain its 30-06 extractor.
Winchester? squared off rear bridge?
 
Winchester? squared off rear bridge?
No. Barrel marked as "R" "4-18". Receiver has "Remington" on top, under front scope base. So, is likely the receiver and rest of it made by Remington, not by Winchester or Eddystone. Bolt and cocking piece stamped "R", but has serial number on underside of bolt handle that does not match receiver serial number - headspace checks okay with gauges, though. Rear original sight ears have been ground off to be like flat rear bridge - home made rear scope base with flat bottom, that appears to match to Weaver #46 on front receiver ring. No provisions for iron sights at all.

Shooter's end of receiver does not appear to have been been ground off square - it still has the M1917 bolt stop spring seat in place.
 
No. Barrel marked as "R" "4-18". Receiver has "Remington" on top, under front scope base. So, is likely the receiver and rest of it made by Remington, not by Winchester or Eddystone. Bolt and cocking piece stamped "R", but has serial number on underside of bolt handle that does not match receiver serial number - headspace checks okay with gauges, though. Rear original sight ears have been ground off to be like flat rear bridge - home made rear scope base with flat bottom, that appears to match to Weaver #46 on front receiver ring. No provisions for iron sights at all.

Shooter's end of receiver does not appear to have been been ground off square - it still has the M1917 bolt stop spring seat in place.
Well it aint the one Century did for me then. Besides rebarrels on p14s, they did ream jobs on p17s. Thought maybe thats what it was.
 
I suspect post WWII there were many P14 and P17 converted to "hunting rifles" - some commercially, and some in someone's work area - varying degrees of competency with tools demonstrated. Similar like Mauser 98 about that time.
 
I read about, but never tried, to go to the bigger Jeffery rounds - that likely needs some milling to receiver feed rails and like a "custom" sized magazine, and maybe some funky grinding to follower to get it to feed properly.
 
I have a .pdf file - is actually three articles. And I was mistaken - not a Jeffery round - these show how to convert a P17 action to 416 Rigby and 505 Gibbs round. I can not figure out how to paste it onto this message - Evan, if you want to see it, I could email a copy to you.
 
I have a .pdf file - is actually three articles. And I was mistaken - not a Jeffery round - these show how to convert a P17 action to 416 Rigby and 505 Gibbs round. I can not figure out how to paste it onto this message - Evan, if you want to see it, I could email a copy to you.
I'd like to see those, if you're willing to share. Email is danbelisled@netscape.net. Thx. - dan
 
I have Remington M1917 with the original barrel rebored to.358 Norma dropped it in a bell and Carlson, timney trigger and rear bridge milled by Bill Leeper amazing rifle
 
Dan I forwarded it to you.

And potashminer, thanks for that I may have already gotten it from you before, I know I've read it before. It was you or Jim that sent it to me.

I turned the feed rails in my p14 into a single stack mag free rails. So I need to open the action and load the round in the same a mag is filled. I have a video of it actually I'll edit this post and post it from the computer. the case was so fat it wouldn't fit between the rails so opposed to making it feed from the left and the right, it just center feeds



i added a second video that shows what's happening from a slightly different angle

 
Last edited:
Evan - you probably already thought of this - but you need something to hold the round down in the magazine, when the bolt gets opened, but then allows the next round to rise up to chamber as the bolt gets closed.
 
Evan - you probably already thought of this - but you need something to hold the round down in the magazine, when the bolt gets opened, but then allows the next round to rise up to chamber as the bolt gets closed.
I used the factory p14 feed rails for that. I only opened up the first 2/3 of them so I can slide the round under the remailing rails that the case doesn't fit though to hold the round in place when the bolt is open
 
Back
Top Bottom