Converting a 30-30 to 357 herrett?

[andym79]

Hi guys, I have a lot of ideas go through my head and have slowly been acquiring normal (common) rifles and turning them in to the less ordinary.

My latest idea is to turn a 94 or 336 from a 30-30 to a 357 herrett!

Would this need anything but a re-barrel?

I ask over a 35-30/30 because the use of the reamer would be free as opposed to buying one.

Yes I know that a 35 rem would work out cheaper, I would really prefer a 356w, but they are as rare as a pink unicorn!

Truth be know I have also toyed with the idea of a 33-30/30 as something even less common, has that been done?

[Tripod]

336 is easy to do but remember the coal must stay the same or you need to shorten the carrier. 35-30 is easy and most smiths should be able to do it using a 30-30 reamer and a 35 cal neck reamer.
You can also do a 358win but you must use reloads and keep the overall length the same as a 30-30. 356 brass is pretty much impossible to get here as is 35 Rem brass.

[GLS_1956]

Have you given thought of going down in bore size to the 7mm-30 Waters? All that would be required is a rebarreling another option would be the 32 Winchester Special which uses the same case as the 30-30.

I prefer the Marlin's action over the Winchester but the Winchester 94 is lighter and trimer.

[andym79]

Have you given thought of going down in bore size to the 7mm-30 Waters? All that would be required is a rebarreling another option would be the 32 Winchester Special which uses the same case as the 30-30.

I prefer the Marlin's action over the Winchester but the Winchester 94 is lighter and trimer.

I have though about getting 28cal i.e the 7-30, I do however have a 25-35, 30-30 and 38-55. So a 348 would actually be the best fit for the unfilled niche.

[Tripod]

Have you given thought of going down in bore size to the 7mm-30 Waters? All that would be required is a rebarreling another option would be the 32 Winchester Special which uses the same case as the 30-30.

I prefer the Marlin's action over the Winchester but the Winchester 94 is lighter and trimer.

I have though about getting 28cal i.e the 7-30, I do however have a 25-35, 30-30 and 38-55. So a 348 would actually be the best fit for the unfilled niche.

Getting flat point 7mm projectiles makes a 7-30 less desirable. If you want to do a 348 you really need to start with a 45-70 action.

[andym79]

Have you given thought of going down in bore size to the 7mm-30 Waters? All that would be required is a rebarreling another option would be the 32 Winchester Special which uses the same case as the 30-30.

I prefer the Marlin's action over the Winchester but the Winchester 94 is lighter and trimer.

I have though about getting 28cal i.e the 7-30, I do however have a 25-35, 30-30 and 38-55. So a 348 would actually be the best fit for the unfilled niche.

Getting flat point 7mm projectiles makes a 7-30 less desirable. If you want to do a 348 you really need to start with a 45-70 action.

Should have been clearer, its not that I want a 348, I just meant a .348 size.

[Tripod]

Have you given thought of going down in bore size to the 7mm-30 Waters? All that would be required is a rebarreling another option would be the 32 Winchester Special which uses the same case as the 30-30.

I prefer the Marlin's action over the Winchester but the Winchester 94 is lighter and trimer.

I have though about getting 28cal i.e the 7-30, I do however have a 25-35, 30-30 and 38-55. So a 348 would actually be the best fit for the unfilled niche.

Getting flat point 7mm projectiles makes a 7-30 less desirable. If you want to do a 348 you really need to start with a 45-70 action.

Should have been clearer, its not that I want a 348, I just meant a .348 size.

Projectile availability means you would probably have to use cast, 375 is easy and makes for a straight 30-30 case. Can also do a 375-08 which is the 308 case blown out to 375.

[andym79]

The 356W and the 375W indeed a 375-08 would need to be either loaded down to <35kpsi or you need a big bore receiver a lot more steel round the locking lug and more around the barrel action junction, the bigbore 94 has a larger thread.


As to the Marlin 336 can anyone chime in as to if those actions can take the 55kpsi which maybe produced in 356W or 375W/375-08 loads?

[Tripod]

Not sure about Winchesters but Marlins are or were made in 375Win and 356Win, The 375-08 is a wildcat so you can load it to a level you feel happy with, I built mine because it made sourcing brass easier than for my 375 Win.
I am currently build a Marlin in 224 Savage Hi-power.

[andym79]

Not sure about Winchesters but Marlins are or were made in 375Win and 356Win, The 375-08 is a wildcat so you can load it to a level you feel happy with, I built mine because it made sourcing brass easier than for my 375 Win.
I am currently build a Marlin in 224 Savage Hi-power.

Glad I am not the only one who like a bit of variety in my rifles, my equivalent to the hi-power is the 219 zipper!