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Shooting 32-20 with BP - part 3 (Read 1954 times)

MartiniBelgian Frequent Elocutionist Offline Posts: 1733 Location: Aarschot Joined: Jun 7^th, 2004	Shooting 32-20 with BP - part 3 Mar 15^th, 2015 at 9:33am	Print Post
	Just came home fro mthe range, shot 10 rounds from a cold, clean barrel at the 75m target - same load, same positon: R-P cases and primers (pulled the bullets and dumped the powder from factory rounds) 16.7gr Swiss 1 1/2Fg 151gr 16:1 GG bullet of my own design Card overpowder wad Whatever compression needed to have the breechblock seat the round the last bit into the rifling The rifle is a BSA 12/15 Martini action, converted to CF and rebarreled with a .308 barrel. Original sights being used (PH7A rear), aperture front Between shots, half a breath down the tube followed by a single dry patch. Probably my best target up to now - about 1 inch vertical, and 1.5 inch horizontal, this for 10 shots prone, with sling, no support. And that includes a called flier... I think I have a new 100m BP match rifle!


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nuclearcricket Oldtimer Offline Posts: 823 Joined: Oct 15^th, 2008	Re: Shooting 32-20 with BP - part 3 Reply #1 - Mar 15^th, 2015 at 1:12pm	Print Post
	Martin, it sure sounds like you have things well on the way to having a tack driver. It will be interesting to see what, if, and if so how much things change when you start working with your fire formed brass. Will you be able to acquire Remington primers? If not, I am wondering how much if any a primer change will make. Thank you for keeping us updated on your progress. I do find this very interesting. Sam


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MartiniBelgian Frequent Elocutionist Offline Posts: 1733 Location: Aarschot Joined: Jun 7^th, 2004	Re: Shooting 32-20 with BP - part 3 Reply #2 - Mar 15^th, 2015 at 4:32pm	Print Post
	Absolutely no idea as to the primers remington uses, but I have lined up some federal small pistol primers to try. And I still have 100 cases of primed brass to form - maybe better keep those for shooting in competition. And I just might try some Fg too. After all, 1 1/2Fg would normally be too coarse for the round, so maybe Fg will shoot even better!


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MartiniBelgian Frequent Elocutionist Offline Posts: 1733 Location: Aarschot Joined: Jun 7^th, 2004	Re: Shooting 32-20 with BP - part 3 Reply #3 - Mar 16^th, 2015 at 2:02pm	Print Post
	And here's the target - ISSF 25m pistol target,please disregard the .22 holes. Most impacts a bit low, but that's just a few clicks up... FWIW, that bigger hole in the 9 ring isn't mine, I'm just cheap and reuse .22 targets. (You need to *Login* or *Register* to view media files and links)


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Mal Full Member Offline Posts: 236 Location: Adelaide SOUTH AUSTRALIA Joined: Dec 5^th, 2012	Re: Shooting 32-20 with BP - part 3 Reply #4 - Mar 18^th, 2015 at 3:03am	Print Post
	Hi Martin, I have for some time played around with a Martini in .308/.222/.so far the best load I found has been a duplex 3Ogns of Wano P over 3gns of PB,I have tried various bullet weights ,150 up to 200gns ,BTW the twist is 12/1,the best groups so far have been in the 1.5" range @ 100yds,good enough for the match We shoot at a 4' cast iron target,2" 13Ring,off hand 100yds,Apperture sights,I breach seat also,I do shoot the same set up with straight PB & Unique, 9 to9.5gns,I know it is not a 32/20, this case is formed by necking up a .222/.223 case to .308. All good fun hope this is of some interest. Cheers Mal.


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