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henrya
Guest
Is anyone shooting a .30 BR improved? Like a BRX or Dasher? I'm thinking about trying a 40 degree version of the .30 BR case. Another grain or two powder capacity might be good.
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Edwin D
Guest
Henrya,
Shelley Davidson made what he called a 30BRX, and David Williams is shooting the same caliber very successfully.
Shelley, ran the 30BR reamer in another 50-100 thousandths.
Not certain which.
Shelley Davidson made what he called a 30BRX, and David Williams is shooting the same caliber very successfully.
Shelley, ran the 30BR reamer in another 50-100 thousandths.
Not certain which.
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Gerry
Guest
30br improved
I did that quite a while ago. A 40 degree 6br. The result s were pretty good. I was able to get 2.5 more grains of the h4895 {old stuff in the case.
I was using a standard 14 twist. it shot very well at 100 and 200.
I bet it would be better at long range with a faster twist though.
i do have a dasher that i intend to play with this year. I'm still playing with bullet weight though. Some people are using the dasher with an 8 twist and long 105 bullets and having great success.
I did that quite a while ago. A 40 degree 6br. The result s were pretty good. I was able to get 2.5 more grains of the h4895 {old stuff in the case.
I was using a standard 14 twist. it shot very well at 100 and 200.
I bet it would be better at long range with a faster twist though.
i do have a dasher that i intend to play with this year. I'm still playing with bullet weight though. Some people are using the dasher with an 8 twist and long 105 bullets and having great success.
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henrya
Guest
I know its hard to argue with the success that most everyone has with the standard .30 BR but I think a little more room will open up the possibility of more powders and variations in loading. It may be something that's not really needed but it might be useful.
One thing I'm thinking about is the size die. It would sure be nice not to reinvent the wheel on sizing. Buying a chamber reamer is one thing, but another size die reamer or custom die(s) is another layer of cost I'd like to avoid. But it might not can be helped. My tolerance for spending a lot of time on case forming and sizing is pretty low these days.
One thing I'm thinking about is the size die. It would sure be nice not to reinvent the wheel on sizing. Buying a chamber reamer is one thing, but another size die reamer or custom die(s) is another layer of cost I'd like to avoid. But it might not can be helped. My tolerance for spending a lot of time on case forming and sizing is pretty low these days.
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Randy J.
Guest
JCummings
What powder are you using to get 3200f/s velocity with 118 bullets? Randy J.
What powder are you using to get 3200f/s velocity with 118 bullets? Randy J.
If ya' ask rilly suh'weet maybe Mr Al will even re-up his pictures.
They're worth the look
http://www.benchrest.com/forums/showthread.php?t=33254&highlight=al+nyhus+wolf+pup
al
They're worth the look
http://www.benchrest.com/forums/showthread.php?t=33254&highlight=al+nyhus+wolf+pup
al
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Pete in Surry
Guest
The 30 BAS
Bill Truitt had a reamer ground years ago thar allowed the BR case to be blown forward and retained a short neck. It is called the 30 BR BAS. Reports say it shoots very well. I have wondered if one could get to some accuracy nodes above 3000. Are you finding any around 3200?
Bill Truitt had a reamer ground years ago thar allowed the BR case to be blown forward and retained a short neck. It is called the 30 BR BAS. Reports say it shoots very well. I have wondered if one could get to some accuracy nodes above 3000. Are you finding any around 3200?
Pete:
I my rifle there are nodes around 2950, 3050, & 3150. I usually shoot the 3150 Node. I'm not sure whats above that. It seems that once I get over 3130 or so the rifle keeps shoot about the same as I add more powder. Velocity climbs slowly but no distinct node.
Allie Euber told me a couple weeks ago he has pushed his rifle 30BR up to around 3400 fps. I'm not going there.
I my rifle there are nodes around 2950, 3050, & 3150. I usually shoot the 3150 Node. I'm not sure whats above that. It seems that once I get over 3130 or so the rifle keeps shoot about the same as I add more powder. Velocity climbs slowly but no distinct node.
Allie Euber told me a couple weeks ago he has pushed his rifle 30BR up to around 3400 fps. I'm not going there.
LARRY FEUSSE
New member
I have been using a 35 degree shoulder on my 30 BR for the last 8 years. I also have the FL size die reamer for it. It does add some case capacity, but not a lot. Another thing that adds capacity is to increase the freebore. With the big relative diameter of the .308 neck, any increase in freebore adds quite a bit to case capacity. I use a special throating reamer that I can push in as far as I want to increase freebore. Right now I am using about .050 freebore with no detrimental effects on accuracy.
Larry
Larry
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Pete in Surry
Guest
Is the gain - - -
Worth not being able to shoot shorter bullets? I have a couple of chambers that have .045 of freebore and I can't make the shorter bullets touch the lands. I would like to be able to shoot 112 or even 100 g bullets I think but can't do that now unless I can find a tune jumping them. P
Worth not being able to shoot shorter bullets? I have a couple of chambers that have .045 of freebore and I can't make the shorter bullets touch the lands. I would like to be able to shoot 112 or even 100 g bullets I think but can't do that now unless I can find a tune jumping them. P
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Pete in Surry
Guest
Jc - -
What sort of bolt lift do you have way up there?
What sort of bolt lift do you have way up there?
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Pete in Surry
Guest
Thanks Jim
Verrrry Interesting, as Artie Johnson use to say.
Verrrry Interesting, as Artie Johnson use to say.
Yes it is....
probably having to do with individual barrels. I had a 1-14 hart that wouldn't shoot anything more than about 34.5 H4198 and have a shilen 1-17 now that handles above 35 with ease. Slight barrel dimensions variations do make a difference.
probably having to do with individual barrels. I had a 1-14 hart that wouldn't shoot anything more than about 34.5 H4198 and have a shilen 1-17 now that handles above 35 with ease. Slight barrel dimensions variations do make a difference.
.30 Dashers, Smashers and Crashers.....
henrya: here's the case alinwa refered to. In this pic, you see a case ready to be fireformed and the final product, should you wish to do some ciperin' and extrapolatin'. It's a 30BR with the shoulder blown foward .240. Case capacity goes from the 30BR's avg. of 40.8 (our reamer) to 45.7 for the WolfPup. The ratio of case cpacity increase per. amount of shoulder 'blow foward' gets a bit herky as what was neck now becomes case body, so keep that in mind. Sharp eyed types will also note that the fired case is 'improved' as far as the case body goes. The shoulder is the same dimension as a 30BR...thus, the .240 longer part of the case has less taper per inch that the standard 30BR case.
[/IMG]
Given the wide tune range of the 30BR, it's pretty nice the way it is. It's a ham and egg case that does everything right. But I do think you can make a case (pun intended) for a 30BR with the shoulder moved foward .050-.070 for a bit more capacity. This isn't as simple as running the reamer in deeper...when you do that, you also enlarge the freebore diameter by the neck diameter...for however much deeper you run the reamer in. In other words, for a .330 neck diameter 30BR reamer run in an extra .070, the first .070 of freebore will be .330. We've found freebore diameter to be a big issue but freebore length seems to be not as important from a tuning standpoint.....except the relationship of the bullet to the lands, obviously.
In my chambers, .030-.035 freebore with a 8 ogive bullet on a 1.00" jacket lets me get a smidge over 35.3 of H4198 in the case and still be able to seat the bullet with .025-.030 of jam. I know there's another node just over the next rise, but I can't quite get there. Shortening the base-to-ogive dimension on my bullets did help some, as I was able to get enough extra powder in there to just get a glimpse of The Promised Land..close but no Corona, though.
The 'big' .30 cases (like the WolfPuP) in my 10.0 lb. Hunter gun actually handles better than my 30BR L.V. gun. The 3" forearm of the LV gun lets that sucker come right back at 'ya..the 2.25" Hunter forearm lets the gun roll in the front bag a bit more and scrubs off some of the push.
In a 13.5 HV gun, there's not enough recoil to ruffle the down on a maidens cheek. 10 yr. old schoolgirls could shoot these and not put a wrinkle on the shoulder of their Hanna Montana t-shirts. Tiny babies could....well, you get the idea.
Here's a comparison of the WolfPup to a more conventional HBR case that holds around 48.0 of water.
[/IMG]
For what it's worth. -Al
henrya: here's the case alinwa refered to. In this pic, you see a case ready to be fireformed and the final product, should you wish to do some ciperin' and extrapolatin'. It's a 30BR with the shoulder blown foward .240. Case capacity goes from the 30BR's avg. of 40.8 (our reamer) to 45.7 for the WolfPup. The ratio of case cpacity increase per. amount of shoulder 'blow foward' gets a bit herky as what was neck now becomes case body, so keep that in mind. Sharp eyed types will also note that the fired case is 'improved' as far as the case body goes. The shoulder is the same dimension as a 30BR...thus, the .240 longer part of the case has less taper per inch that the standard 30BR case.
Given the wide tune range of the 30BR, it's pretty nice the way it is. It's a ham and egg case that does everything right. But I do think you can make a case (pun intended) for a 30BR with the shoulder moved foward .050-.070 for a bit more capacity. This isn't as simple as running the reamer in deeper...when you do that, you also enlarge the freebore diameter by the neck diameter...for however much deeper you run the reamer in. In other words, for a .330 neck diameter 30BR reamer run in an extra .070, the first .070 of freebore will be .330. We've found freebore diameter to be a big issue but freebore length seems to be not as important from a tuning standpoint.....except the relationship of the bullet to the lands, obviously.
In my chambers, .030-.035 freebore with a 8 ogive bullet on a 1.00" jacket lets me get a smidge over 35.3 of H4198 in the case and still be able to seat the bullet with .025-.030 of jam. I know there's another node just over the next rise, but I can't quite get there.
Shortening the base-to-ogive dimension on my bullets did help some, as I was able to get enough extra powder in there to just get a glimpse of The Promised Land..close but no Corona, though. The 'big' .30 cases (like the WolfPuP) in my 10.0 lb. Hunter gun actually handles better than my 30BR L.V. gun. The 3" forearm of the LV gun lets that sucker come right back at 'ya..the 2.25" Hunter forearm lets the gun roll in the front bag a bit more and scrubs off some of the push.
In a 13.5 HV gun, there's not enough recoil to ruffle the down on a maidens cheek.
10 yr. old schoolgirls could shoot these and not put a wrinkle on the shoulder of their Hanna Montana t-shirts. Tiny babies could....well, you get the idea. Here's a comparison of the WolfPup to a more conventional HBR case that holds around 48.0 of water.
For what it's worth. -Al
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henrya
Guest
That's kind of what I'm thinking too. I'll follow up on some of y'alls comments and we'll see what happens. It might be worth buying a reamer.