The initial shotshell Taurus test was not without a bit of

WB
[subject]
Tuesday, July 13, 2021, 20:01 (1856 days ago)

wonder. I got some very strange chrono readings. One noted here was 1425 fps and it was a little hotter than the others I had predicted to be at 900-1000 based on my data calculations. Another read 175 fps and felt like 800. How do you get a chrono to "lie", must have been a long shot string or something.

My base wadding needs improvement as does a better and more consistent crimp. The brass was forming a little step down and a couple set back a little, locking up things for a bit. Not enough pressure to flatten and grab chamber walls so it jets to the recoil shield then blows out to iron itself in place. Not not too bad.

I shot plates at 15 yds. (note do not use wooden oak pallets as backstops - shot myself even at an angle) My loads, while unrefined and raw, totally shamed factory .410 shotshells that cost about $1.50 each. I shot the lower right plate TWICE with factory shotshells, #8 listed at 1300 fps, they averaged 1000 fps. First shot got TWO hits on a 8" plate at 15 yds! Second shot only added 6 more. Totally crap and worthless except maybe 10-15 ft. Or clearing the deck of a Pirate ship.

[image]

I used a mix of #5 & 6 shot a friend gave me. I averaged 16 hits per plate. I do think the velocity was around 800-850 fps, not too far off my prediction given the crimps were not as good as I hoped. Brass is not totally blown out to chamber dimensions. Real snake killers and useful, just need refinement.

[image]

My notes are that I need a more solid or thicker base wad. The shot really greased the forcing cone with lead too, what a mess. I'm thinking a .410 plastic wad would be a useful addition. The bore is greased with lead too. I'd rather clean out plastic fouling over lead any day.

[image]

I only had one case with a small mouth split. I'll trim it out. Test one sharpened my sense of the requirements. I'll make another run at it.

[image]

Leading

Bob Denning
[subject]
Tuesday, July 13, 2021, 20:15 (1856 days ago) @ WB

Since you’re target is a snake is there any other “shot” you could use that would still kill a snake at 10 feet? Peppercorns. Mustard seed. I don’t know. Maybe the misfits have some suggestions

A time back i made some special shells for Puffy loaded with condoms. We called them “penetrators”.

I can see that, would make an interesting

WB
[subject]
Tuesday, July 13, 2021, 20:49 (1856 days ago) @ Bob Denning

CSI episode. Las Vegas or LA?

I'm thinking a pellet condom (plastic wad) might actually work as the pellets transition from chamber to barrel. I could keep my dacron wad too. The over shot wad might be better done as a .44 gas check with a flared mouth, then crimp.

Are you shooting through a baffle

Chip
[subject]
Wednesday, July 14, 2021, 12:18 (1855 days ago) @ WB

such as a piece of plywood with a hole through it both to protect screens and catch any slow and wild wads skewing readings?

Nope, just across the skyscreens. BUT

WB
[subject]
Wednesday, July 14, 2021, 12:42 (1855 days ago) @ Chip

If it was reading other pieces you'd get two or three readings. I was getting both high and low odd ones. I think the skyscreens saw it as a 6" long bullet, starting the timer and ending it. Normally shotshells go without a hitch. But these are not loaded as typical shotshells. With the pellets loose and starting to string at 6-8 ft. the skyscreens are likely confused on s few shots.

My next attempt will be with encapsulated pellets in a .410 wad. We'll see how that goes.

That oughta work. My main experience has been

Chip
[subject]
Wednesday, July 14, 2021, 15:45 (1855 days ago) @ WB

in .45ACP using the CE Harris RCBS die(s), quite labor intensive BUT the shells worked interchangeably with FMJ in the magazine, had a snake/small game killing power range of 20-25ft where it still also was at full choke percentage (70%) patterns. Been years since I loaded any, but was great for the woods where the snake load cycled the gun and FMJ after that. Those used a cut down shotshell wad and overshot homemade wad.
You might glean a few ideas to try from this webpage on the ACP for your own loads/gun/'speriments.

http://www.avr-developers.com/45shotshell/

Thanks!

WB
[subject]
Wednesday, July 14, 2021, 20:54 (1855 days ago) @ Chip

- No text -

If you wonder as CE's credentials on info posted

Chip
[subject]
Thursday, July 15, 2021, 14:11 (1854 days ago) @ WB

a little background on Charles. He is cagey in especially those old posts, but what he was doing during Vietnam was working on "The Farm" in VA, testing and evaluating spook gear, including survival gear/weapons/ammo and in concert with local machinist and gunsmith, supplying same to such legendary operative/"troubleshooters" as Harry Archer, Harry also was a big fan of Bob Loveless and had Bob make the now famous Chute Knife. I have Harry's old knife from before then, a Randall #7-4 1/2 with stag. Charles went on to do R&D/QC for Ruger, also instrumental in design of the M16A2 for the Marines, and also Technical Editor for the NRA.

In short, if Charles tells you something, it has been tested and verified by highest statistical sampling methods again and again and again, pressure/velocity/accuracy/whatever. His basics for groups are minimum of 10ea 10rd groups, just to begin to have any statistical confidence.

Unrelated trivia, but, Harry was the inspiration

Chip
[subject]
Thursday, July 15, 2021, 14:25 (1854 days ago) @ Chip

for Tom Clancy's "Mr. Clark".

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