40-65: Learning what I can

[Kurt]

John,

The 3.5 degree is just a wonder if......I have a curiosity that just has no end. Why does this work better then that
I look at the lead bullet chamber that the .22 rimfire uses and it will just enlarge the hole if it does that.
When I get groups at 200 yards that are less then 2" and sometimes less then 1" with the chambers close to what a .22 uses it makes me want to check this out a little more.
Here is an example with one rifle, my .44-77. This rifle started with a 45 degree chamber end. I was plaque with paper rings and lead smeared bores shooting PP bullets. Orville was kind enough to lend me his 7 degree throating reamer and I changed it to a 7 degree and the down range holes looked better but not as good as the rifle with a 4 degree. So I did the unthinkable and used my .44-100 chamber reamer that has a 4 degree. Well running a chamber reamer in to just change the throat was a dangerous project. But the .44-77 has a larger diameter chamber then the 100 so careful indicating the reamer so I did not catch the chamber wall. I lucked out and got the job done. The change improver the consistent groups I'm getting with the rifle.
Right now I'm working on a print for the .44-77 that will be strictly a PP chamber with a 3 degree transition and it will have a barrel completely different then now mostly used. No it will not be a gain twist
It will be an interesting project.
The .44-77 and the .44-2-5/8 BN are great shooters that is overlooked because it's a bottle neck.