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by mtngun
Sun Jan 07, 2018 3:14 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 15798

Re: S & W N-frame Project

As if I did not have enough things to worry about, there's this. :? The end of the barrel is square and true, and the other two barrels yield similar results, so the barrel is not to blame. The problem is that there is angular misalignment between the cylinder and the barrel. UPDATE: I measured the ...
by mtngun
Sun Jan 07, 2018 2:54 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 15798

Re: S & W N-frame Project

CRIMP SHOOTOUT using the 180 gr. BB control load. Neck tension can influence the case's grip on the bullet even more than crimp. Many expander spuds are too big for my taste and end up getting modified so that they barely touch a sized case. https://imgur.com/30CRYbM.jpg A homemade die was used for ...
by mtngun
Fri Jan 05, 2018 5:47 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 15798

Re: S & W N-frame Project

Testing the 185 gr. Keith bevel base. 100 yards, "True Mini" cone. Accuracy was poor, averaging 7.33". The Keith did not seem to like the "True Mini" cone. :cry: Previously, the Keith had shot 4.40" in the "intermediate Taylor" and 4.90" in the "Fals...
by mtngun
Fri Jan 05, 2018 5:33 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 15798

Re: S & W N-frame Project

Testing the "bastard" bore riding 180 gr. GC bullet. I forgot to number the sequence of these targets but I started at the top left and worked down to the bottom right. The first two targets were decent, but targets #3 and #4 were shotgun patterns. What the heck? I examined the gun closely...
by mtngun
Fri Jan 05, 2018 5:25 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 15798

Re: S & W N-frame Project

Testing the "True Mini" Taylor cone with the same control load used to test all the other cones. -- its 3.52" average was about the same accuracy as the two "Taylor Junior" cones. -- the "True Mini" was definitely an improvement over the "False Mini", whi...
by mtngun
Thu Jan 04, 2018 11:39 am
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 15798

Re: S & W N-frame Project

I set the GM #2 barrel back 2 threads (0.056"), but left its cone alone other than cutting a minimalist 5 degree chamfer at the entrance. Basically, it's the same cone as before except shorter and tighter. I'm calling this the "True Mini" Taylor cone as opposed to the previous "F...
by mtngun
Sun Dec 31, 2017 7:25 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 15798

Re: S & W N-frame Project

Trying out the inappropriately named "Mini" Taylor throat. The Keith bullet was pushed by 15.3 gr. WC297 while the rest of today's loads were pushed by 15.6 WC297. Normally I use the coated 180 gr. BB as a control load, but I didn't have enough of those bullets on hand so I subsituted vari...
by mtngun
Sat Dec 30, 2017 9:42 pm
Forum: lever actions
Topic: 325 gr Design for Ballard Remlin
Replies: 16
Views: 3650

Re: 325 gr Design for Ballard Remlin

Here's what I got with Quickload, assuming a 24" barrel and a 2.540" COL. 40 gr. H4198 (100% fill) = 1980 fps & 43,000 psi 41.3 gr. RX7 (100% fill) = 2037 fps & 43,000 psi 46.5 gr. H335 (100% fill) = 1980 fps & 37,000 psi 41.3 gr. H322 (100% fill) = 1868 fps & 31,000 psi. L...
by mtngun
Thu Dec 28, 2017 3:27 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 15798

Re: S & W N-frame Project

I fitted my last chunk of used GM barrel to the M29. The tenon was offset 0.0070" - 0.0075" as indicated by the Mitutoyo at the leade area (there is some uncertainty because the indicator bounces around a fair amount in the grooves). If I clock the tenon to offset the cylinder's 0.0070&quo...
by mtngun
Thu Dec 28, 2017 10:36 am
Forum: revolvers
Topic: Design program won't let me order a light .500 bullet mold!
Replies: 4
Views: 887

Re: Design program won't let me order a light .500 bullet mold!

OK on the 2-cavity.

14 1/2 feet? :lol: :lol: :lol:

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