Author Topic: Building a 4 Bore English Rifle  (Read 10533 times)

Offline Bill Raby

  • Hero Member
  • *****
  • Posts: 779
Re: Building a 4 Bore English Rifle
« Reply #100 on: January 08, 2021, 03:35:59 PM »
Here is Part 37


Offline Sand Watcher

  • Starting Member
  • *
  • Posts: 4
Re: Building a 4 Bore English Rifle
« Reply #101 on: January 09, 2021, 10:08:13 PM »
Thank you for making this video series, Bill! Itís probably the best-documented custom build Iíve ever seen.

I came across this a little while ago, and have been watching your posts out of order. So, maybe Iíve missed it, or havenít gotten there yet, but what is the twist of the barrel, and where did you get it? ...or more specifically, where can I get one? :)

I once built a little 4-gauge smoothbore from Rayl that I plink around with quite a bit, but Iíd love to make one with rifling.

Offline Bill Raby

  • Hero Member
  • *****
  • Posts: 779
Re: Building a 4 Bore English Rifle
« Reply #102 on: January 10, 2021, 03:50:30 AM »
Its 104 inch twist. I got it from Oregon Barrel.

Offline Sand Watcher

  • Starting Member
  • *
  • Posts: 4
Re: Building a 4 Bore English Rifle
« Reply #103 on: January 14, 2021, 02:08:13 AM »
Thank you, Bill! I just placed an order, after talking with Suzy yesterday. They seem pretty good to work with. She did say to expect a 9-month turnaround due to production limitations.  I wound up asking for a 32 inch. It will be interesting to see whether those extra few inches affect practicality or performance.

Offline Daryl

  • Hero Member
  • *****
  • Posts: 9305
Re: Building a 4 Bore English Rifle
« Reply #104 on: January 14, 2021, 02:34:45 AM »
Sandwatcher - interesting you got the longer barrel. Forsyth noted the larger bored guns did quite
 well with 24" to 26" bls. but he was talking double rifles.
Daryl

"a gun without hammers is like a spaniel without ears" King George V

Offline Sand Watcher

  • Starting Member
  • *
  • Posts: 4
Re: Building a 4 Bore English Rifle
« Reply #105 on: January 14, 2021, 03:50:01 AM »
Was Forsyth saying that the shorter barrel was perfectly adequate for  his needs, or that a longer barrel would be a detriment?

In a pinch I could always shorten it, but I got the longer barrel for a couple of reasons. One is to eventually add more data points to the limited body of knowledge surrounding this class of guns. Another is to avoid issues I have with my 20Ē 4-gauge, which are twofold... For one, the barrel (at 6-7 lbs) is too light, meaning excessive recoil. Secondly, itís too short to get high muzzle velocities (and maybe to some extent accuracy).

Offline Bill Raby

  • Hero Member
  • *****
  • Posts: 779
Re: Building a 4 Bore English Rifle
« Reply #106 on: January 14, 2021, 05:19:18 AM »
   I got a 29 inch barrel. I think 32 inch would be fine. These barrels are pretty heavy. Mine is a bit over 12 pounds. My only complaint is that the gun has a lot of weight on the muzzle. I suppose there is not much way around that.  Barrel is 1 3/4 inch at breech tapering to 1 1/2 inch at muzzle. If I were to get another I think I would go for 1 7/8 inch at breech and 1 1/2 inch at muzzle. A little more weight on the breech end would be nice. But that would complicate things a bit more than they already are. I have gotten a few people offering me enormous amounts of money for the next one I build so I will probably do one more sometime and let them fight over it.

   This one is a bit of a challenge, but all is going well so far. There is a good amount of stuff that I had to figure out as I go. Good part is that all the videos will on You Tube by the time you get a barrel. Maybe there will be a few things in there to help you out.

Offline Sand Watcher

  • Starting Member
  • *
  • Posts: 4
Re: Building a 4 Bore English Rifle
« Reply #107 on: January 14, 2021, 07:19:56 AM »
Yes, I think your video series will be an important reference when I get around to doing my build. Iíve been wanting something like this for a while, but thought it would too hard/expensive to have a barrel made for it. What I will probably do when I get the barrel is drive it over to ToW (I live fairly close) and rummage through their locks to find one that fits easily. With the patent breech, Iím going to need to be a little more careful about where the vent lands.

If you are concerned about balance, maybe you could bed some lead slugs or a mercury filled tube into the stock (kind of like shotgunners do)? Youíd have to find a way to do it without compromising the strength too much, or your sense of PC. That would also help absorb a little bit of recoil.

Fortunately, with a PRB, the heaviest projectile youíll be shooting will probably be only 3.3 ounces. Maybe 3.2 ounces with a thick patch (plus the weight of the powder).

Offline Bill Raby

  • Hero Member
  • *****
  • Posts: 779
Re: Building a 4 Bore English Rifle
« Reply #108 on: January 15, 2021, 03:00:09 PM »
Here is Part 38