ASSRA Forum - Part I - The New M. Gruny Martini Schuetzen Rifle

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Part I - The New M. Gruny Martini Schuetzen Rifle (Read 12931 times)

oneatatime Frequent Elocutionist Offline Posts: 3915 Location: Rocky Mountains Joined: Oct 30^th, 2011	Re: Part I - The New M. Gruny Martini Schuetzen Rifle Reply #15 - Jul 16^th, 2012 at 3:45pm	Print Post
	John Boy, that is the Lyman bullet for the 405 Winchester. The Lyman mould is available from Buffalo Arms. They call it 300 grains but mine casts closer to 288. It is a good casting mould and I use it in a 40-65 for Cowboy Silhouette.


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pres Newbie Offline Posts: 4 Joined: Jul 22^nd, 2006	Re: Part I - The New M. Gruny Martini Schuetzen Rifle Reply #16 - Aug 8^th, 2012 at 9:59pm	Print Post
	John Boy Check out the dimentions for a 9.5x47r. I think that it will be closer to what you want. I have a rifle in that caliber, came with three cases made from A base Mauser brass. A friend showed up at the Club with a 9.5x47r that he had made cases from 45-70s. They worked fine. Another friend had aquired a 9.5x47r along with forming dies. Borrowed set up and made cases from 45-70s. The case is a few thou small in front of the rim, and rims had to be turned and has to be trimmed to length. After getting cases ready to fire form I wraped a singlr layer of Beageling tape about 1/2 in. wide in front of the rim, this made a nice sliding fit into the chamber. Fireformed with BE and the cases came out fine. The case did not expand where the tape is but the remainder of the case filled out to the chamber. I have not shot it yet the case neck wants a 382 diameter bullet. drmaynard


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John Boy Ex Member	Re: Part I - The New M. Gruny Martini Schuetzen Rifle Reply #17 - Aug 9^th, 2012 at 11:51am	Print Post
	Quote: Check out the dimentions for a 9.5x47r. I think that it will be closer to what you want. Pres - your correct ... When I 1st started measuring, thought it was a 10.5x47R with a chamber cast and what references I could find. But was puzzled because the bore/groove dimensions indicated it was a 9.5x47R caliber... which I'm sure now it is. So I ordered 40 Bertram 9.5x47R cases and started a comparison of dimensions between the Bertram's - chamber cast & dimensions in Donnelly's Conversion Cartridges with the neck length in Donnelly's being severely different and the shoulder diameter being different. The other dimensions are in the the ball park or on the money. I talked to Mr Davidson at CH4D about spec's for a FL die, he said from experience that Donnelly's Manual is 'loaded with errors'. Right now, the stripped receiver and barrel is with Bill Loos in Rochester being fitted for a diopter sight and new top for the front sight. He has to make a new diopter foot for the proper length and angles at the bottom of it. Mr Loos also makes a 260gr mold for the caliber. Kind of expensive but there are no commercial bullet molds for this caliber on the market When the rifle returns - fire form a couple of the Bertram's and actually see how the pregnant cases measure up to the chamber. Then send a fire formed case to CH4D to determine if their full length sizing die is on the money or I have to have a custom die made. If yes, then the rifle will not possibly be range ready for 4 - 6 months PS: Bertram cases sure are expensive - from Buffalo Arms ... $3.10 a case! From Reloading International - $3.65 per case. And Bertram lists on their website - $138 but number of cases not specified. Have an email to them to find out `
	« Last Edit: Aug 9^th, 2012 at 11:57am by »

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