Thank you, Kootne, this modification to use bored out cases to get an old one shooting shows up here and there and always interests me- though I'll never do it. 
Another question just occurred to me. If the bored out case has some original primer pocket remaining, say in a .44 caliber or other case with a big head, how would you handle that?

There has also been some discussion on using .27 caliber nail gun rounds and breach seating bullets. I have tried these on a limited basis and they do work. Have some extraction issues and sometimes had to use a cleaning rod to extract the empties but they do work and accuracy at 25 yards is similiar to the Canuck ammo from the '70's which I have a prety good supply.

Been running math to help decide what level Ramset blanks to use.  Backing into the pressure looking at resulting velocity.  I'm trying to figure a safe load for the old '94 Favorites, which are about the weakest action ever chambered for .32 Long RF.

Looks like, for the .32 Longs, #2 is about right.  Gives you just short of 900 fps with that 88 grain heeled bullet from the 399153 mould that tenmile is using.  Bolt thrust about equal to that of a Standard Velocity .22LR.   

Has anyone clocked the velocity of factory .25 Stevens loads?  

@Dellet:  What is your velocity with that load you posted?   I'm calculating about 1.1 grains Bullseye with the 65 grain Arsenal bullet, again keeping the load down to cater for my old style Favorites. 

Since my Ballard started life as a .22RF I could easily line the barrel and return to that. But my Ballard was rebored at Stevens to the .25 Stevens RF and I like the history of it being done there, plus the bore is perfect. I have about 5-6 boxes of Cannuck .25RF and will likely shoot those up, but then I'm looking at options. So far the best option seems to be breech seating and using low power Ramset cases that are readily available, and wont alter the gun.

uscra112,
I have a #2 Ballard that started life as a .22rf and was then redone to .25 Stevens at some point in it's life.
The .27 charges fit THIS rifle perfectly... rim D., case D., and the extractor has worked every time.
YMMV,
Dave

uscra112 asked,
What is the O.D. of these .27 caliber Ramset charges? Do they fit the .25 Stevens chamber well enough without an adapter?   

I am measuring a Ramset #3 27 cal. The rim is .330 dia., the case is .267 dia., the rim thickness is .050 where it transitions to the case, tapering to about .040 @ the OD. OAL to the front of the star crimp is .415
It is my understanding that the Winchester .17WSM case is based off these loads with a lengthened case.

hope this helps,
Dennis

.38 cases are the largest diameter that can be bored for a .22 LR case chamber. For the .44 cases soldered plugs work well allowing the chamber to be bored for proper rim placement. The nice thing about using parent cases in stead of bar stock is that in some cases you can get a really good fit of the case to the chamber with proper bullet in leade placement with a little trimming and machining rather than having to machine the whole case.

uscra112 wrote on Feb 24^th, 2018 at 12:07am:


With 3 grains of Trail Boss, round numbers:
16" barrel Favorite
60 grn 1275 fps
65 grn 1250 fps
70 grn 1200 fps

I used load data from Quickload for a .255 (Jeffery)Rook, it's very similar in size. It was a .255" 65 grain bullet with an advertised velocity of 1200 fps. Case was 1.15" with a water capacity of 15 grains. 

Changing the case length to 1.125" with a capacity of 13.5 and using a Lyman 257420 67 grain bullet as a model.

The predicted load was based on the bullet seated .350" in a 1.125" case, was 1186 fps. Estimated pressure was 17,200 psi.

My actual 5 shot average was 1197 with an ES of 35.

Same loads in a 24" barrel picked up about 40 fps.

When I run your Bullseye load the same way it comes out to 
16" barrel
1.1 grn 700 fps, 3800 psi
2.0 grn 1120 fps 10,400 psi
2.5 grn 1290 fps 15,200 psi.

I may try and run those one night this week in the 44 1/2 to see how the numbers compare. 

Nice to have a stronger action for load tests.