seeking info on DIY choke/forcing cone modifications
- Thread starter czscotia
- Start date
Short answer "no" I have no knowledge of any books on the subject. To further this like asking if anybody knows of a good book on DIY open heart surgery.
Choke and forcing cone modifications are not something you want to try at home especially on a double barrel. You best seek and use the services of a good gunsmith.
Choke and forcing cone modifications are not something you want to try at home especially on a double barrel. You best seek and use the services of a good gunsmith.
- Location
- Saskatchewan
You can look at Brownell's website, they sell choke and forcing cone reamers, most of them need to be used in a lathe.
They do have some instruction videos and books too, not sure if any cover this subject. You would be budgeting about the cost of a GOOD shotgun for the proper bore gauges, reamers, hones, and that does not include a lathe, or training. A worthy ambition, but not if you want to save money when a gunsmith can ream and polish a barrels choke and forcing cone for about $100 or so for each barrel.
They do have some instruction videos and books too, not sure if any cover this subject. You would be budgeting about the cost of a GOOD shotgun for the proper bore gauges, reamers, hones, and that does not include a lathe, or training. A worthy ambition, but not if you want to save money when a gunsmith can ream and polish a barrels choke and forcing cone for about $100 or so for each barrel.
The Gun Digest Book of Shotgun Gunsmithing by Ralph Walker is pretty good and will give you a lot of info.
Brownells is also pretty good about sending just the instructions for the tools they sell. You might go that route to see if this work up your alley.
Brownells is also pretty good about sending just the instructions for the tools they sell. You might go that route to see if this work up your alley.
Whether this is a good idea depends on the gun. While opening chokes isn't difficult if they are not concentric the POI could be changed. Lengthening the forcing cones removes metal just ahead of the chamber and depending on the gun can reduce the barrel thickness below acceptable minimums.
Although it is not an expensive gun, it does look nice and I will not attempt it if I have doubts. no chrome in the barrels but I was wondering about the forcing cone area as you point out claybuster, I understand from reading that the abrupt cones of old do increase pressure at this point but I don't know how to find out if there is suficient strength here to lengthen.
It depends on the barrel wall thickness and how much metal you remove. In most cases with most guns there is plenty left but in a gun with thin barrels you may reduce the wall thickness below minimums.
