Questions about J.C. Higgins Power Pac & Browning Auto 5

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drk1

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Recently two people asked questions about 2 shotguns that I was hoping you folks could answer.
First, a fellow explained that he has his father's J.C. Higgins Model 20 with a "power pac" choke. It is an old system and hasn't been made for decades, with good reason. When you screw the choke tube into the ventilated housing on the end of the barrel, there is a gap between the end of the barrel and the beginning of the choke tube. The size of that opening depends on which choke has been inserted, but it can vary from about a half inch to about an inch and half. The question is whether it is safe to shot modern shotgun shells that have the plastic shot cups with this space between the end of the barrel and the beginning of the choke tube. He is worried that the lip of the shot cup will get caught or "hang up" on the choke tube and blow the entire choke off of the barrel. He wanted to hear from someone with first hand experience before he risked his father's shotgun. He realizes it doesn't have much monetary value but it is the sentimental value that he doesn't want to loose.

Second, another fellow has a Browning A5, made in Belgium from the 1930s, and wants to know if he could replace the original barrel with a recently manufactured A5 barrel that has the Invector Choke system. He doesn't want to spend a two or three hundred dollars on a barrel that will not fit his shotgun. I called Browing to ask, but after being on hold for about a half hour, I gave up. Once again comments from folks with first hand experience would be greatly appreciate.

Thanks for your time and attention!
 
1. Modern wadding in modern cartridges will be perfectly safe in the old JC Higgins. It basically has a variation of the Cutts compensator system. Shoot it and fear not.

2. Short answer, no. I'm pretty sure that the barrel extensions differ between Belgian and Jap made guns. It would behoove you to contact Mike Orlen (Google him) and discuss having it threaded for thin wall tubes. He's very reasonable and has a quick turnaround time. I sent a barrel from a M11 Remington to him and had it back in about 10 days. It'd be worth your time, in my opinion.

Mac
 
My understanding is the barrels are interchangeable between Miroku and Belgian A-5’s. I’ve read this is so a number of times but have no hands on knowledge of it.
 
My understanding is the barrels are interchangeable between Miroku and Belgian A-5’s. I’ve read this is so a number of times but have no hands on knowledge of it.
I have read the same but have no opportunity to try it as mine are all Belgian.
 
Ok, I need to clarify something: my answer to question 2 is incorrect. I went to my friends home this afternoon and we verified it does work. What doesn't work is a Remington M11 barrel on an A5 receiver. A M11 barrel will interchange with an American A5 made by Remington during the Second World War, however. My apologies for the incorrect information.

Mac

Mac
 
Also forget savage barrels. Imperial vs metric.

Take the advice above and have it modified for thin wall chokes.
 
It may also depend on the age of the shotgun. When I was young back in the 60's my much older next door neighbor had a very old 16ga Browning acquired from a relative with two barrels. He said the gun had to be sent back for the second barrel to be fitted. Not certain but that's what he said. This gun had raised checked barrels instead of vent ribs.
 
It may also depend on the age of the shotgun. When I was young back in the 60's my much older next door neighbor had a very old 16ga Browning acquired from a relative with two barrels. He said the gun had to be sent back for the second barrel to be fitted. Not certain but that's what he said. This gun had raised checked barrels instead of vent ribs.
If it was being fitted to a 2 3/4 16g barrel, there's a bit of receiver alteration needed to change from the older 16g shell length.
 
I have a Japanese barrel on my Belgian Browning. Got one when I had to start using steel shot for waterfowl hunting. Got a modified choke to use instead of the full choke that was on it.
 
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