no.1 conversion ?

w8n4rut

Beginner
Feb 28, 2007
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have a newer (black pad) #1-b in 300 win and was thinking about roy's
30-378. this is the rifle i would like to use for a conversion of this type. what do you think?? how big of a deal to convert from 300 win to the weatherby round? i know it may not be the most practical,but it would be 8)
 
w8n4rut":c348hkt1 said:
have a newer (black pad) #1-b in 300 win and was thinking about roy's
30-378. this is the rifle i would like to use for a conversion of this type. what do you think?? how big of a deal to convert from 300 win to the weatherby round? i know it may not be the most practical,but it would be 8)
..............I`m not that familiar with the #1s to comment on what it would take to convert over, or if that would even be possible to do.

But you do realize that vs the 300 Win, the 30-378 will reduce your barrel life?

In looking at my edition V Sierra manual, both rounds are tested with 26" barrels.

Using certain powders, the 300 Win propels the 165 gr Sierras up to 3300 fps, while the 30-378 shows 3400 fps max using only one powder. For the 180s, the 300 Win shows 3100 fps and the 30-378 shows 3300 fps. For the 200s, the 300 Win lists 3000 fps max, while the 30-378 lists a max of 3200 fps.

In reality and given the same barrel lengths, what can you do successfully in the field with a 30-378, that you could not do successfully in the field with a 300 Win???

Imho, taking into consideration reduced barrel life and the fact that the 30-378 only gives you a 3% to 6% velocity increase depending on the bullet weight and powder used, a conversion, if possible to do, is simply not worth it. If you were going from a 30-06 to the 30-378, that would be a different ball game.

Going from a 300 Win to the 30-378, is not enough benefit to cost ratio imo, to justify a conversion.
 
As an add on to my last sentence in my last post........Going from a 300 Win to a 30-378, is not enough benefit to cost ratio imo, to justify a conversion....But doing so, will certainly benefit one`s ego alot more than any real increased benefit in the field!
 
i understand and i agree with you, but i always wanted a 30-378 and the #1 is a favorite of mine. i know it is unpractical but it is just one of them things i would like to do. i like the cartridge and always wanted a rifle chambered for it. i know i am not gaining much over the winnie, i just like the caliber and figured if i was going to do it now would be the time. life is short. :grin:
 
w8n4rut":31ihiw0f said:
i understand and i agree with you, but i always wanted a 30-378 and the #1 is a favorite of mine. i know it is unpracticle but it is just one of them things i would like to do. i like the cartridge and always wanted a rifle chambered for it. i know i am not really gaining much over the winnie, i just like the caliber. :wink:
.............Emotionally wanting something vs its practicality, are sometimes two different things.

Emotion takes precendant! Then by all means go for it,,,,,,"if",,,,,,it can be done! You`ll probably be the only guy with a #1 chambered in a 30-378 Wby. You`ll just need more powder and more $ for the brass after you buy your dies and shellholder.
 
Its an easy conversion. Once you get the chamber carved out, you might only need a new extractor/ejector. A thicker recoil pad is optional. :eek:
 
w8n4rut":2u0jb22p said:
i understand and i agree with you, but i always wanted a 30-378 and the #1 is a favorite of mine. i know it is unpractical but it is just one of them things i would like to do. i like the cartridge and always wanted a rifle chambered for it. i know i am not gaining much over the winnie, i just like the caliber and figured if i was going to do it now would be the time. life is short. :grin:

I shot a factory 30-378Wby and use 113gr/Retumbo with 180gr bullet @ 3470fps sure don't know any 300mag getting that kind of velocity.

Even with a brake the 30-378Wby has alot of recoil and I worry about the stress on the #1 action alot of barrel to hang on that action assuming your going to rebarrel. The 300Wby was the biggest 30 cal Ruger did on the #1 and they don't chamber that anymore.

I've had afew #1 rebarrel presently have a 300Wby,30-338mag tight neck calibers in 22BR and 6ppc.
 
The 30-378 is the coolest, fastest caliber going. It outsells most Wby. calibers. I agree that it will burn out barrels faster and isn't much faster that some other 300 mags. I have a accumark in 30-378 and it puts a 180 gr AccuBond out at 3460 FPS. The accurate but not fastest possible loading. The recoil is like a 270 due to the muzzle brake.
I have a Ruger #! in 458 Lott. The recoil is NOT like a 270 due to the lack of a muzzle brake.
The conversion isn't impossible but things will change. The barrel will need to be 26"+ to get max velocity. That will change the ballance of the rifle. Without a muzzle brake the recoil will be NOTICIBLE especially with a short barrel. Now my 458 Lott Kicks hard but due to the velocity (2740 FPS) with a 350gr TSX it isn't as sharp a recoil. It's merely brutal.
As Big Squeeze said the velocity gain isn't proportional. I currently own a 300 RUM that shoots the 180 A/B at 3330 FPS. For 130 fps. there's a lot of changes (expensive) to the bigger case. I could probably get close to 3400 FPS with the RUM if I pushed it and didn't worry about accuracy. The 300 RUM will get you there a lot cheaper. Whatever you choose the velocity will be tied to the barrel length as much as the caliber. The feel and balance of this change may or may not be what you want.
Good Luck and have fun :grin:
Greg
 
no biggie. Just get a good smith and get a 28" barrel. It will be way shorter than a WBY rifle due to the #1 action and you can get 3300-3400 with a 200 AccuBond.
 
Not significant?

with a 180gr bullet, your going from a velocity of 3000fps to 3450 fps
That's a 15% increase in velocity, which translates into a 30% increase in energy. (energy is a squared relationship)

You can also go from throwing a 180gr bullet at 3000, to throwing a 220 at the same velocity. That's a 25% increase in bone crushing momentum.

And for us distance nuts....it shoots flatter.

The mule deer standing 100 yards boadside will never know the difference, but for those of us that like to push the envelope, the 30-378 gives us a much bigger envelope. Besides, it's a Ruger #1. If I only get one shot, I might as well make it a good one.
 
Antelope_Sniper":c6w2ril4 said:
Not significant?

with a 180gr bullet, your going from a velocity of 3000fps to 3450 fps
That's a 15% increase in velocity, which translates into a 30% increase in energy. (energy is a squared relationship)

You can also go from throwing a 180gr bullet at 3000, to throwing a 220 at the same velocity. That's a 25% increase in bone crushing momentum.

And for us distance nuts....it shoots flatter.

The mule deer standing 100 yards boadside will never know the difference, but for those of us that like to push the envelope, the 30-378 gives us a much bigger envelope. Besides, it's a Ruger #1. If I only get one shot, I might as well make it a good one.
................The #s on paper seem significant, but how much extra velocity and energy does one need over the 300 Win in return for the price of reduced barrel life and higher reloading expenses?

180 gr Nos A/B; 507 BC; 300 Win downrange #s w/300 yard zero
MV= 3100
At 400 yards.........V= 2379 fps......E= 2262 lbs..........-9.3"
At 500 yards.........V= 2216 fps......E= 1963 lbs..........-24.8"

180 gr Nos A/B; 507 BC; 30-378 downrange #s w/300 yard zero
MV= 3400
At 400 yards.........V= 2632 fps......E= 2768 lbs..........-7.6"
At 500 yards.........V= 2459 fps......E= 2417 lbs..........-20.2"

Regardless of the #s, the vitals still need to be hit, which are still located in the center of the animal, not in the next county over. 1963 & 2262 ft lbs at 400 & 500 yards from the 300 Win, is more than enough downrange energy for any elk, caribou etc on the planet along with the above related bullet velocities from the 300 Win.

With a 1.7" trajectory difference @ 400 yards and a 4.6" trajectory difference @ 500 yards, the only thing that a 300 Win hunter needs to do is simply aim slightly higher....Now that`s a real tough-eeeeee!

While the velocity and energy #s from the 30-378 "on paper" are a significant increase over the 300 Win, the truth and reality is, that upon being hit properly into the vitals, the animal is a going down either way, using either cartridge, whether hit with 1963 lbs of downrange energy or 2417 lbs. If one can`t fill the freezer using a 300 Win, it is highly likely that one isn`t going to fill the freezer using the 30-378 either.

However, there is nothing wrong with pushing that 30 cal envelope with the fastest production 30 possible, namely the 30-378, if one`s preference is as such.
 
the vitals still need to be hit, which are still located in the center of the animal, not in the next county over

Sometime's when I shoot, the vitals ARE located in the next county over.

When Ridge Runner shoots, you have to run to the ridge in the next county over (or maybe two counties) to pick up the deer....and Desert Fox, he shoots across the WHOLE desert....

At these ranges, it all about widening the margin of error, and an extra 450 FPS helps widen the margin of error that will still result in a full freezer.
 
Antelope_Sniper":32l93kki said:
the vitals still need to be hit, which are still located in the center of the animal, not in the next county over

Sometime's when I shoot, the vitals ARE located in the next county over.

When Ridge Runner shoots, you have to run to the ridge in the next county over (or maybe two counties) to pick up the deer....and Desert Fox, he shoots across the WHOLE desert....

At these ranges, it all about widening the margin of error, and an extra 450 FPS helps widen the margin of error that will still result in a full freezer.
...............OH! Then you must a taking aim from a position closer to the county line then???? :lol: :lol: :lol: :lol:

There is a little more of a margin for error with the 300 Win, but not by much in the trajectory dept. I`ve never taken a deer or elk beyond 500 yards anyway (487 max). Never had the need to. In most hunting states, the average (guided hunt) distances for the kill shots, average less than 400 yards across the board.

I do prefer to do a little stalking with my lower powered 300. In my case, a lowly :cry: powered "pip squeak" shorty tubed 300 WSM, that still has enough downrange energy at 500 yards (1951 ft lbs) :shock: if needed, using a certain re-load.

A pitcher can throw a fast ball at 95-100 mph for a strike.....He can also throw a 75-85 mph slow curve or a change up, and also get the same strike. Either way, a strike is a strike. All I do is aim just a little higher and I`ll float that bullet right in there!!!.... :lol: :lol: :lol: ...........Steee-rrrrryyyyke!!!
 
Antelope_Sniper":35yr5i87 said:
I take alot of game in the 600-1000 yard range.
We are playing two different games.
..........Well if that`s the case, then the 30-378 is more ideal at those extended ranges. Regardless of the cartridge, 500 yards maybe out to 600 would be my range limit.

Maybe you should go on the "Best of the West" TV show??? :)
 
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