- Location
- WMU247 near Edmonton
the 340 is a simple action
fairly revolutionary for the time with the barrel nut
but scope mounting with the split receiver limits your options, however there are some nice side mounts
Savage 340 barrel nut is off - 357 Herrett project proceeds
- Thread starter woodchopper
- Start date
the 340 is a simple action
fairly revolutionary for the time with the barrel nut
but scope mounting with the split receiver limits your options, however there are some nice side mounts
I'm following this with great interest
I have some of these
one is a "parts" gun in 30-30. it is a 340, and that is the one I want to play with
I lean to the 35/30, or 8mm/30 shortened for a longer bullet
I sure wish I had the knowledge/abilities/resources you fellows have!
I have some of these
one is a "parts" gun in 30-30. it is a 340, and that is the one I want to play with
I lean to the 35/30, or 8mm/30 shortened for a longer bullet
I sure wish I had the knowledge/abilities/resources you fellows have!
These can be fun project guns. But best if DIY. If a gunsmith has to be paid, the cost could rapidly exceed the value of the finished rifle.
Modestly priced usable barrels are the way to go. If a new barrel must be purchased the cost spirals up.
8mm/30 sounds like .32Special...
Modestly priced usable barrels are the way to go. If a new barrel must be purchased the cost spirals up.
8mm/30 sounds like .32Special...
- Location
- WMU247 near Edmonton
yes, good little projects if you can find them cheap enough.
as noted in a previous post the magazines are really the part that will make of break the project. If the rounds don't feed from the magazine your stuck. The 30-30AI was a good idea but only 1 round would fit and feed from the magazine reliably so that was a dead end.
I would like to find more mags in all the different calibers that the 340s came in but they don't seem to be widely available. Building a mag might be an option as they are really fairly simple construction, but I am not ready to tackle that project just yet. I am looking at building a single stack mag to feed 44Mag for another project.
as for projects, I have a bunch of great choices of hunting rifles in my collection, 243win, 25-06, 7mmRM, and some heavies 325WSM 338WM for hard hitting at longer ranges. But What I wanted was something with a bit of thump at short range, 357Maximum and 44Mag were on my list but the 357Herrett really intrigued me, and when I found reloading dies for it then there was no looking back.
Just need the reamer now to finish the project... I have been thinking hard on how to build a reamer, the cutting of the flutes and finishing are hanging me up, I don't have a milling machine in the shop so I am trying to do milling operations with the lathe.
They do make them as a custom order but $193USD plus shipping and fees is just not a cheap option. I'm still looking at options in eastern europe.
as noted in a previous post the magazines are really the part that will make of break the project. If the rounds don't feed from the magazine your stuck. The 30-30AI was a good idea but only 1 round would fit and feed from the magazine reliably so that was a dead end.
I would like to find more mags in all the different calibers that the 340s came in but they don't seem to be widely available. Building a mag might be an option as they are really fairly simple construction, but I am not ready to tackle that project just yet. I am looking at building a single stack mag to feed 44Mag for another project.
as for projects, I have a bunch of great choices of hunting rifles in my collection, 243win, 25-06, 7mmRM, and some heavies 325WSM 338WM for hard hitting at longer ranges. But What I wanted was something with a bit of thump at short range, 357Maximum and 44Mag were on my list but the 357Herrett really intrigued me, and when I found reloading dies for it then there was no looking back.
Just need the reamer now to finish the project... I have been thinking hard on how to build a reamer, the cutting of the flutes and finishing are hanging me up, I don't have a milling machine in the shop so I am trying to do milling operations with the lathe.
They do make them as a custom order but $193USD plus shipping and fees is just not a cheap option. I'm still looking at options in eastern europe.
Ran your numbers for a 19" barrel using a case with total capacity of 42.0 grs. H2O [QL's default for the cartridge] through QL:
180 gr. XTP [Hornady's 2.040" C.O.A.L.] with 28.9 grs. IMR4198, Hornady Vol. 10 Max. load [117% fill ratio] = 2,228 fps @ 50,651 psi
158 gr. XTP [Hornady's 2.065" C.O.A.L.] with 28.9 grs. IMR4198, Hornady Vol. 10 not listed w/ this powder [105% fill ratio, more reasonable, IMNSHO] = 2,188 fps @ 36,125 psi
G.R.T. reflects:
180 gr. XTP [Hornady's 2.040" C.O.A.L.] with 28.9 grs. IMR4198, Hornady Vol. 10 Max. load [119.2% fill ratio] = 2,271 fps @ 63,475 psi
158 gr. XTP [Hornady's 2.065" C.O.A.L.] with 28.9 grs. IMR4198, Hornady Vol. 10 not listed w/ this powder [106% fill ratio, more reasonable, IMNSHO] = 2,245 fps @ 42,828 psi
Any dea what your brass' case capacity is? Can you fit almost 29 grains & seat a bullet?
180 gr. XTP [Hornady's 2.040" C.O.A.L.] with 28.9 grs. IMR4198, Hornady Vol. 10 Max. load [117% fill ratio] = 2,228 fps @ 50,651 psi
158 gr. XTP [Hornady's 2.065" C.O.A.L.] with 28.9 grs. IMR4198, Hornady Vol. 10 not listed w/ this powder [105% fill ratio, more reasonable, IMNSHO] = 2,188 fps @ 36,125 psi
G.R.T. reflects:
180 gr. XTP [Hornady's 2.040" C.O.A.L.] with 28.9 grs. IMR4198, Hornady Vol. 10 Max. load [119.2% fill ratio] = 2,271 fps @ 63,475 psi
158 gr. XTP [Hornady's 2.065" C.O.A.L.] with 28.9 grs. IMR4198, Hornady Vol. 10 not listed w/ this powder [106% fill ratio, more reasonable, IMNSHO] = 2,245 fps @ 42,828 psi
Any dea what your brass' case capacity is? Can you fit almost 29 grains & seat a bullet?
- Location
- WMU247 near Edmonton
Oh I know what I'm going to be doing this weekend
those numbers look good, thanks for running them, a slightly compressed load
I think I have a pound of 4198 in the back of the powder box
and some 180grn and 158grn XTP projectiles that I use in my 357Mag. the sample brass I have is made from fireformed 30-30 to 30-30AI and then running it through the 357Herret dies and trimming to length.
Might need a slightly faster powder to squeeze out a little more. (I have IMR4227)
woodchopper, I was just going to ask what other powders you have on hand & I'll run them for you.
Let me know what your case capacities are & I'll run an update for you.
Let me know what your case capacities are & I'll run an update for you.
Re-ran the numbers for a 19" barrel for a case with total capacity of 42.0 grs. H2O [QL's default for the cartridge] through QL:
158 gr. XTP [Hornady's 2.065" C.O.A.L.] with 28.0 grs. IMR4227 [100% fill ratio] = 2,300 fps @ 44,365 psi
180 gr. XTP [Hornady's 2.040" C.O.A.L.] with 25.0 grs. IMR4227 [100% fill ratio] = 2,090 fps @ 43,274 psi
G.R.T. says:
158 gr. XTP [Hornady's 2.065" C.O.A.L.] with 28.9 grs. IMR4227 [98.9% fill ratio] = 2,406 fps @ 49,475 psi
180 gr. XTP [Hornady's 2.040" C.O.A.L.] with 25.7 grs. IMR4227 [98.8% fill ratio] = 2,190 fps @ 49,152 psi
The different burning characteristics reflect the sample powders' lots' used by each developer [G.R.T.], or by the powders' characteristics provided by the manufacturer, in the case of QL.
Got any Lil Gun, 5744, W296, H322 or 680?
Don't forget that Hornady advises the maximum muzzle velocity for their XTP bullets is as follows:
158 XTP-HP 1,400 fps
158 XTP-FP 1,800 fps
180 XTP-HP 1,700 fps
You might be better off, assuming you have or can get them, to use one of the 3 different 200grain bullets Hornady offers in their rifle line although you will be trading some velocity for their use. Or, if you have or can find some of Speer's 180 grain or Hornady's discontinued 180 grain SP rifle bullets.
158 gr. XTP [Hornady's 2.065" C.O.A.L.] with 28.0 grs. IMR4227 [100% fill ratio] = 2,300 fps @ 44,365 psi
180 gr. XTP [Hornady's 2.040" C.O.A.L.] with 25.0 grs. IMR4227 [100% fill ratio] = 2,090 fps @ 43,274 psi
G.R.T. says:
158 gr. XTP [Hornady's 2.065" C.O.A.L.] with 28.9 grs. IMR4227 [98.9% fill ratio] = 2,406 fps @ 49,475 psi
180 gr. XTP [Hornady's 2.040" C.O.A.L.] with 25.7 grs. IMR4227 [98.8% fill ratio] = 2,190 fps @ 49,152 psi
The different burning characteristics reflect the sample powders' lots' used by each developer [G.R.T.], or by the powders' characteristics provided by the manufacturer, in the case of QL.
Got any Lil Gun, 5744, W296, H322 or 680?
Don't forget that Hornady advises the maximum muzzle velocity for their XTP bullets is as follows:
158 XTP-HP 1,400 fps
158 XTP-FP 1,800 fps
180 XTP-HP 1,700 fps
You might be better off, assuming you have or can get them, to use one of the 3 different 200grain bullets Hornady offers in their rifle line although you will be trading some velocity for their use. Or, if you have or can find some of Speer's 180 grain or Hornady's discontinued 180 grain SP rifle bullets.
- Location
- WMU247 near Edmonton
thanks again, looked at my powders and IMR4227, H110, and IMR4198 are the most appropriate I think.
and I have some Hornady 158grn XTP-FP as well as the 180grn XTP.
I did a trial load and got 29.8grn of 4227 in the case.
and I have some Hornady 158grn XTP-FP as well as the 180grn XTP.
I did a trial load and got 29.8grn of 4227 in the case.
Re: I did a trial load and got 29.8grn of 4227 in the case.
Do you mean you were able to seat a bullet on top of that charge or that the 29.8 grs. of 4227 filled the case to the mouth, requiring the powder charge to be compressed in order to reach your chosen C.O.A.L.?
Do you mean you were able to seat a bullet on top of that charge or that the 29.8 grs. of 4227 filled the case to the mouth, requiring the powder charge to be compressed in order to reach your chosen C.O.A.L.?
- Location
- Nova Scotia
looking at load data again....
most load data is worked up for a 12" barrel I suspect that a 19" barrel should give me a significant increase and the ability to use a little slower powder to better effect.
so the data for a 180grn Hornady XTP listing IMR4198 and a 1900fps out of a 12" barrel, out of a 19" I should get another 50fps/inch so perhaps 2250fps with 180grn bullet
a 158grn bullet I'm confident that I will be able to push it over 2200fps
those velocities and bullet weights are easily equal or better then a 30-30
You want me to scan the post data for 357 Herrett in my Lyman manual?
- Location
- WMU247 near Edmonton
bullet seated with a very light crunch so, powder filled the case up to the shoulders only, neck was free space to seat the bullet. Slightly compressed load. I was surprised.
Sounds like your brass may have more case capacity than the default case that QL & GRT use.
Weigh an empty case with a fired primer inside; record the weight.
Now take the same case & fill it with water, being sure to remove any water droplets that got on the outside of the case & touch the corner of a paper towel to the top of the case if there is a prominent meniscus, so that the water is level with the mouth of the case. Weigh it again.
Full case weight - empty case weight = net case capacity.
Both QL & GRT require a full case capacity measurement & the programme solves for usable case capacity, based on C.O.A.L., which is, of course determined by bullet diameter & seating depth.
Weigh an empty case with a fired primer inside; record the weight.
Now take the same case & fill it with water, being sure to remove any water droplets that got on the outside of the case & touch the corner of a paper towel to the top of the case if there is a prominent meniscus, so that the water is level with the mouth of the case. Weigh it again.
Full case weight - empty case weight = net case capacity.
Both QL & GRT require a full case capacity measurement & the programme solves for usable case capacity, based on C.O.A.L., which is, of course determined by bullet diameter & seating depth.
