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by mtngun
Thu Feb 15, 2018 2:18 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

What's next? -- try drilling a hollow base -- try a slightly longer (say 0.050") ogive -- try a GC version that is loaded full throttle. Ross Seyfried recommended full throttle loads for his 1 MOA revolver project. -- try the control bullet with 300 MP and with Lil Gun. That's all I can think o...
by mtngun
Thu Feb 15, 2018 2:12 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

A re-test of the coated 75% meplat with shallow hollow point. I had tested this previously but with a slightly different load that clocked over 1400 fps, so in order to give the hollow point a fair chance I retested it with the current load that clocked 1365 fps. Also, the HP was slightly different,...
by mtngun
Thu Feb 15, 2018 1:50 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

The meplat shootout continues with a 95% meplat. https://imgur.com/eq9sgjz.jpg I halfway expected the 95% meplat to be unstable, but it made round holes in the paper and turned in a 3.75" average. Go figure. https://imgur.com/NXwzSk5.jpg Then I tried a couple of hollow point versions of the 95%...
by mtngun
Mon Feb 12, 2018 8:47 am
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

Hi Dan, For what its worth to you, I would love to see more experimentation on this subject with hollow pointing these bullets to try to determine at what point hollow pointing helps accuracy and at what point it starts to hurt accuracy. How about the .25" hollow point as you drilled it but ma...
by mtngun
Sat Feb 10, 2018 10:18 am
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

The meplat shootout continues ..... today I tested the 85% meplat with the usual control load. https://imgur.com/96uLndA.jpg Top half of the target is the solid nose 85%, bottom half is the hollow point 85%. There was a switchy 5 to 7 mph wind that may have contributed to the horizontal and diagonal...
by mtngun
Thu Feb 08, 2018 5:54 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

I made a custom collet to hold 35 caliber bullets in the lathe while hollow-pointing. The collet is slower to use than a 6-jaw chuck, but unlike a chuck the collet can hold soft bullets without squishing them. At first I tried using a 1/4" round nose end mill to make the shallow hollow point, b...
by mtngun
Tue Feb 06, 2018 4:44 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

The alloy shootout continues .... Coated lino averaged 3.07". 8-) :) https://imgur.com/mxJw6E4.jpg Without a coating, lino was slightly less accurate at 3.38", and the velocity variation was slightly higher. The uncoated lino bullets left some faint streaks of lead in the middle of the bar...
by mtngun
Tue Feb 06, 2018 3:45 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

THE meplat shootout continues ..... today I tried a 62% meplat with the usual control load. https://imgur.com/hm8ND2b.jpg Results so far: 50% meplat -- 6.38" average at 100 yards 62% meplat -- 4.48" average 75% meplat -- 2.76" average Next time I will try an 85% meplat. https://imgur....
by mtngun
Thu Feb 01, 2018 2:00 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

Getting back to the alloy shootout .... Coated air-cooled reclaimed shot. As discussed in the previous post I decided to tweak the powder charge to hit 1370 fps, so these loads used 15.4 gr. WC297 instead of the usual 15.6 gr.. FYI Quickload believes that 25,000 psi is required to hit 1370 fps, so t...
by mtngun
Thu Feb 01, 2018 1:39 pm
Forum: revolvers
Topic: S & W N-frame Project
Replies: 107
Views: 4967

Re: S & W N-frame Project

Getting back to the hollow point shootout ...... The HP'd uncoated bullet shot very well so I had high hopes for the coated version. This was quenched after coating so the BHN was about 25. https://imgur.com/mcRluCX.jpg Accuracy was not so great, mainly due to a single flier. If you disregard the fl...

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