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ba10 subsonic 12gauge 28gram lead shot


Guest cookoff013
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Guest cookoff013

guys i been tinkering.....

 

12-70mm

cx2000

13.2 grains ba10 (thirteen point two)

2x 4mm powdercard

20mm fibre wad

28 gram lead shot (#6)

290 m/s @2.5m

412 bar

8.00 n/s

 

this shell should recoil less than the 32g vectan load and the figures say it does by more than 10% (or thereabouts)

 

i suspect that this ba10 subsonic could have 0.5 grain more powder to gain alittle speed, and i mean alittle.

 

this load has been used by another shooter....... says its ok and clean !

 

edit in red.

 

there you go you hushers go out there and make no noise.

Edited by cookoff013
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Guest cookoff013

Reminds me of the 'old' Lyalvale Magnasonic fibre. It used 12 grains of Neodisc 24 and cycled my Winchester Model 59.

Try it in 65mm with one card wad.

 

 

 

i put this in a 70mm case because most reloaders are 70mm, and the 70mm length is great for ejecting out of pumps and whatnot. although i think it will struggle with ejection from an automatic. this uses the same "average" components the 4mm card and the 20mm wad.

 

i thought this would be good for a low noise / low recoil application. these cost approx £200/k saving anywhere between £20 to £10 over factory 1 oz offerings. i beat factory this time. but its only a specialised application.

 

if i recollect, (i made these a year ago,) they reloaded very nice, everything fit quite well, it crimped beautifully.

 

here is some additional information

http://forums.pigeonwatch.co.uk/forums/topic/261288-proof-or-pudding/

 

Ba10 powder

MEC bushing / Grain

#21 - (12.6) guesstimated

#22 -13.2

#23 - (13.8) guesstimated

#24 -14.6

#25 -15.2

#26 -15.8

#27 - (16.4) guesstimated

#28 -17.0

#29 -17.6

#30 - 18.2

#31 - (18.7) guesstimated

#32 -19.2

 

so i weight the powder when i did the test loads, but actual printing out of lots of ammunition i`ll be using... bushing mec#22.

 

there is a 28mm wad length with only a 20mm compression section..

 

i cant wait to try these out either !

Edited by cookoff013
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sadly the shells I loaded were easily subsonic but the cartridge was still too noisy! I think it was because it was a slower powder than AS or BA10.

I will try a different powder and see if I can get better results.

I have loaded some of the BA10 with 28g of lead 3 and that is a super long range rabbit stopper. Pellet count is around 140 so would like a few more but the BA10 is so quiet.........

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sadly the shells I loaded were easily subsonic but the cartridge was still too noisy! I think it was because it was a slower powder than AS or BA10.

I will try a different powder and see if I can get better results.

I have loaded some of the BA10 with 28g of lead 3 and that is a super long range rabbit stopper. Pellet count is around 140 so would like a few more but the BA10 is so quiet.........

 

I use A0 for great 20gauge subs and that is a slow powder. Did you chrono your 'subs'?

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Maybe....however a max dose of powder in a muzzle loader is always no greater than the volume of shot being shot (as a general rule). More black powder makes it spread more and less holds it tighter.

Usually associated to all that gas kicking a solid wad in to the rear of the shot at leaving the muzzle.

Anyway.....

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I loved my Blackpowder days. I still have my Thompson Center New Englander 12 and Kentucky .45 carbine!

just about to get a 45 Kentucky in smooth I hope.

What make is yours?

Them New Englanders are supposed to be very good!

 

Had a rifled 45 years ago. Once that barrel was run in it was mustard!

Edited by Underdog
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Guest cookoff013

sadly the shells I loaded were easily subsonic but the cartridge was still too noisy! I think it was because it was a slower powder than AS or BA10.

I will try a different powder and see if I can get better results.

I have loaded some of the BA10 with 28g of lead 3 and that is a super long range rabbit stopper. Pellet count is around 140 so would like a few more but the BA10 is so quiet.........

I think its related to volume of gas too. But can't say for sure.

 

I don't have a 20 bore, I want one. But I need an auto 12 first.

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Guest cookoff013

i`ve used 391, and an supersport. i think i am going to either buy a 2nd hand sx3 or a new affinity...

 

i have a gun set up just for steel, currently thats the supernova. kinda need an auto. skeet is good with cheap steel.

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