Doble Troble
03-29-2006, 08:40 PM
http://personal.geeksnet.com/soderstrom/3855.jpg
This is my "new" buffalo rifle in 38-55. The target shown (4" paper plate, the 6 mm hole was from my neighbor at the range sighting in his 243 :neutral: ) was at 100 yds with the bullet shown a gas checked LLA lubed Lyman 375449 (I think). I cast them from mutt metal (a mix of pure lead and melted-down range finds) sized to ~ 376 with a Lee-style home-made sizer.
The rifle is a formerly abused and rusted 32 spl found cheap at a local pawn shop. I put one of the A&B F44 375 barrels that are on sale at Midway and chambered in 38-55. I've really lucked-out and it has shot some good groups and does really well with the gas checked bullet shown and 20.8 gr of 5744. I used it to shoot in our local buffalo shoot this weekend (I used to shoot a 30-30 which was problematic at 200 yds not in-terms of accuracy but in-terms of telling whether or not the bullet hit the target. Those 30 cal bullets just don't ring the gong). I shot 23/25 which is the best I've ever done.
The problem is that although the rules state that gas checks are allowed, it was clear that my use of them was frowned upon and appears "gamey". The challenge is to come up with a plain based bullet that will be as accurate and more in line with the spirit of the contest.
I've slugged the bore and the grooves are .376 and the lands .365. Edit due to bad measuring: the throat is 0.166, base to rifling = 2.295. The twist is 1/12 and so I'm thinking I want a long bullet about 330 gr, maybe between 1200 - 1400 fps?
Is there any more information I need to design a bullet for this rifle? I'm thinking about trying the on-line design at Mountain Molds (http://www.mountainmolds.com/).
This is my "new" buffalo rifle in 38-55. The target shown (4" paper plate, the 6 mm hole was from my neighbor at the range sighting in his 243 :neutral: ) was at 100 yds with the bullet shown a gas checked LLA lubed Lyman 375449 (I think). I cast them from mutt metal (a mix of pure lead and melted-down range finds) sized to ~ 376 with a Lee-style home-made sizer.
The rifle is a formerly abused and rusted 32 spl found cheap at a local pawn shop. I put one of the A&B F44 375 barrels that are on sale at Midway and chambered in 38-55. I've really lucked-out and it has shot some good groups and does really well with the gas checked bullet shown and 20.8 gr of 5744. I used it to shoot in our local buffalo shoot this weekend (I used to shoot a 30-30 which was problematic at 200 yds not in-terms of accuracy but in-terms of telling whether or not the bullet hit the target. Those 30 cal bullets just don't ring the gong). I shot 23/25 which is the best I've ever done.
The problem is that although the rules state that gas checks are allowed, it was clear that my use of them was frowned upon and appears "gamey". The challenge is to come up with a plain based bullet that will be as accurate and more in line with the spirit of the contest.
I've slugged the bore and the grooves are .376 and the lands .365. Edit due to bad measuring: the throat is 0.166, base to rifling = 2.295. The twist is 1/12 and so I'm thinking I want a long bullet about 330 gr, maybe between 1200 - 1400 fps?
Is there any more information I need to design a bullet for this rifle? I'm thinking about trying the on-line design at Mountain Molds (http://www.mountainmolds.com/).