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+---- Thread: .38-50 Hepburn (/thread-3174.html)
RE: .38-50 Hepburn - ian45662 - 01-09-2022
Of course!! I ended up having a reamer made for this one. A copy of one of Dan T designs.
RE: .38-50 Hepburn - Don McDowell - 01-09-2022
Ian I think I have some of the Lyman 319 gr postels cast up.
RE: .38-50 Hepburn - ian45662 - 01-09-2022
(01-09-2022, 12:47 PM)Don McDowell Wrote: Ian I think I have some of the Lyman 319 gr postels cast up.
I have 0 boolits for it at the moment. Not sure when my mould will be done.
RE: .38-50 Hepburn - Don McDowell - 01-09-2022
What are you getting for a mould?
RE: .38-50 Hepburn - Kurt - 01-09-2022
That should work just fine. Arnie gave me a heads up with the problem I was having chambering my Winchester cases in my chamber that solved my problem.
Arnie mentioned a .303 brit sizing die would reduce the case enough for it to fit his chamber so I took a measurement with a case I fired in my chamber and I found my problem was not the rim or base diameter but it was right at the shoulder by several thousands so I bumped a case 1/2" in my .30-30 die and that solved the chambering issue, but the .30-30 die is really to tight so I ordered a $17. Lee sizing die I will cut the neck off and use it for the rest of my cases.
Yesterday I shot a few over 100 cases loaded with Unique and Cornmeal and got them trimmed and reloaded with a full load of black and a bullet to do the final forming and a second trim and I should be ready for load development.
I want to get this done in time for the startup at Friendship.
Keep it posted with your project. I can see a fun battle of the .38's starting
RE: .38-50 Hepburn - ian45662 - 01-09-2022
(01-09-2022, 12:52 PM)Don McDowell Wrote: What are you getting for a mould?
Paper patch elliptical bullet 1.47” long.
RE: .38-50 Hepburn - Don McDowell - 01-09-2022
Should be fun.
RE: .38-50 Hepburn - ian45662 - 01-09-2022
(01-09-2022, 01:02 PM)Kurt Wrote: That should work just fine. Arnie gave me a heads up with the problem I was having chambering my Winchester cases in my chamber that solved my problem.. So far the cases that I have converted drop right in. I have not fire formed anything yet
Arnie mentioned a .303 brit sizing die would reduce the case enough for it to fit his chamber so I took a measurement with a case I fired in my chamber and I found my problem was not the rim or base diameter but it was right at the shoulder by several thousands so I bumped a case 1/2" in my .30-30 die and that solved the chambering issue, but the .30-30 die is really to tight so I ordered a $17. Lee sizing die I will cut the neck off and use it for the rest of my cases.
Yesterday I shot a few over 100 cases loaded with Unique and Cornmeal and got them trimmed and reloaded with a full load of black and a bullet to do the final forming and a second trim and I should be ready for load development.
I want to get this done in time for the startup at Friendship.
Keep it posted with your project. I can see a fun battle of the .38's starting
RE: .38-50 Hepburn - beltfed - 01-09-2022
ian
Hopefully the 1.47" bullet will be stabile in your 12 twist at least out to midrange.
I had figured about 1.4" long for 12 twist. This 371345E has worked well in a couple of friend's 12 twist 38-50s out to midrange
And should also out to 1K
I had a 1.46" DDEPP mold 371360E cut for my 10 twist. Shoots well at 600, should work for 1K
beltfed/his
RE: .38-50 Hepburn - ian45662 - 01-10-2022
(01-09-2022, 11:24 PM)beltfed Wrote: ian
Hopefully the 1.47" bullet will be stabile in your 12 twist at least out to midrange.
I had figured about 1.4" long for 12 twist. This 371345E has worked well in a couple of friend's 12 twist 38-50s out to midrange
And should also out to 1K
I had a 1.46" DDEPP mold 371360E cut for my 10 twist. Shoots well at 600, should work for 1K
beltfed/his
I know I am probably pushing it a little on the length. I am anticipating the bore diameter bullet to shrink a little when it upsets. My thought is to have as much weight as I can on these projectiles so that they will knock rams over. When I ordered the mould they said that length and diameter should put me between 350 and 360 grains. At this point I am just guessing that I can get them close to 1400 fps but I have no clue. If they are to long I guess I will just buy shorter mould.OR…….. Get a 10 twist barrel ?