All Weather Big Boy grouping issues

[Shakey Jake]

Better to measure the bore with plug gages if you have them. I have sets from .011 to .500 but use them in my business. It would be a bit expensive to purchase just for one issue. They come in either plus or minus sets. Henry will also let you know what the diameter of the grooves ( rifling) is and also the lands. They provided that info for me when I was having issues with my .327 Fed Mag
Jake
Addendum: Henry told me the .327 Fed Mag barrel was .303"

[pennsylvaniapete]

Will do…..I anticipate them contacting me tomorrow or Tuesday.

[DsGrouse]

I'm watching this also, as I am having issues with both my 38/357 and 45 colt.

[DsGrouse]

Better to measure the bore with plug gages if you have them. I have sets from .011 to .500 but use them in my business. It would be a bit expensive to purchase just for one issue. They come in either plus or minus sets. Henry will also let you know what the diameter of the grooves ( rifling) is and also the lands. They provided that info for me when I was having issues with my .327 Fed Mag
Jake
Addendum: Henry told me the .327 Fed Mag barrel was .303"

Where would you find plug gauges?

[parson48]

So far, my experience with Henry Customer Service has been good. I bought a .357 single shot that shot lousy, they replaced the rifle for me with one that shoots good with right loads.

I shoot mostly cast, so I always slug the bores of my rifles. Jacketed bullets shouldn't be ab issue unless the bore is quite a bit oversized.

[Shakey Jake]

Better to measure the bore with plug gages if you have them. I have sets from .011 to .500 but use them in my business. It would be a bit expensive to purchase just for one issue. They come in either plus or minus sets. Henry will also let you know what the diameter of the grooves ( rifling) is and also the lands. They provided that info for me when I was having issues with my .327 Fed Mag
Jake
Addendum: Henry told me the .327 Fed Mag barrel was .303"

Where would you find plug gauges?

https://www.mcmaster.com/plug-gauges/

[DsGrouse]

Thank you!

[Shakey Jake]

Thank you!

You're welcome. I use the ZZ guages.
Jake

[pennsylvaniapete]

Well, I received a case number for my .44 mag accuracy problem. Henry CS said that I should recheck scope Mount/rings for proper torque settings…..change scopes, if I have another to put on it.

If results are not satisfactory….remove the scope and mount. Reinstall the plug screws in the top of the receiver, and try the factory open sights. If none of the above helps…..contact them for a return shipping label.

I will try to get range time later in the week.

[leverjc]

Sounds like Henry wants you to invest a lot of ammo on things you have already tried. I think it would be less expensive if you found a gun shop with a borescope.