.300 win mag: pursuing 4000 feet per second.

[del2les]

Yeah those numbers are more probable for sure.

powder you use with those 110s? Are these 110 Barnes? Do you coat them with anything? Just trying to get a comparative bit of info.

They are the Barnes, and I've used R17 and Hunter. I tried with both moly and plain, and the moly actually gave lower vels and pressure, so I had to up the charge to achieve similar to plain. I quit using moly. Needless to say, impacts at the shorter ranges were instant DRT, but I kept things to shoulder hits.

 

[jpndave]

Quickload doesn't have Superformance powder. It predicts 3850+ fps with a max load of RL26 as the fastest powder. 4000fps is probably not possible with that bullet without a serious pressure overage. The Hammer bullets would be interesting to test here.

I would be happy to run some others if you get COAL, etc. on your rifle.

 

[scope-eye]

Try some non mag primers if you are so inclined, it will lower the pressure and reduce the tell tale signs that come with that type of loading. So you can either feel safer about that load or persue it even further. You should be able to hit 4000 fps no problem with bullets that have a reduced bearing surface IE: TSX,TTSX's or Hammers. Don't be afraid to be to jump the lands, I like 100 thou in my 30 and 338 calibers. RL 17 is my go to powder for that type of loading, and the non mag primers have no problem with it.

Dean

 

[Calvin45]

Try some non mag primers if you are so inclined, it will lower the pressure and reduce the tell tale signs that come with that type of loading. So you can either feel safer about that load or persue it even further. You should be able to hit 4000 fps no problem with bullets that have a reduced bearing surface IE: TSX,TTSX's or Hammers. Don't be afraid to be to jump the lands, I like 100 thou in my 30 and 338 calibers. RL 17 is my go to powder for that type of loading, and the non mag primers have no problem with it.

Dean

I'm familiar with that non mag primer effect. But unfortunately I'm also familiar with the compressed load of ball powder hangfire in cold weather with non-magnum primers effect . I can't wait to get that chrono back (it's not that he's stolen it or anything, just a legit forgetful dude who doesn't live right close by haha). Rl17 isn't b

im not sure how close to the lands it is but do know im letting it jump a good bit, and I did that on purpose. Firstly because letting it jump allows for bigger charges, secondly because it does indeed have a super short bearing surface and I opted to have all of that surface firmly in the short neck of that .300 Winnie. It's almost like they're meant for each other…the bearing surface on that Bullet is almost exactly corresponding to the .300 win mag neck.

I actually have seen rl17 at my local gun store lately and may grab a pound if this doesn't do what I want. But like rl17 superformance is a "progressive burn rate" powder different from many so I'm starting here.

 

[scope-eye]

Ah yes the great white north or as Geddy Lee would say "Take off to the great white north" lol
We are in august so I did not factor in the cold, and I was refering to RL17 with the non mag primers. RL 17 is the slowest powder I use for any application. isn't ball powder they oldest of all powder technology, if you want to get the numbers you are looking to achive you have to take advantage of any advancement in powder available. that goes for bullets also. I get well over 4000fps and I mean WELL over with my 300 winmag and 110gr TTSX's, in full disclosure it is a 30 inch 13 twist there are plenty of post on here from me a about the subject. Good Luck

Dean

 

[Calvin45]

Ah yes the great white north or as Geddy Lee would say "Take off to the great white north" lol
We are in august so I did not factor in the cold, and I was refering to RL17 with the non mag primers. RL 17 is the slowest powder I use for any application. isn't ball powder they oldest of all powder technology, if you want to get the numbers you are looking to achive you have to take advantage of any advancement in powder available. that goes for bullets also. I get well over 4000fps and I mean WELL over with my 300 winmag and 110gr TTSX's, in full disclosure it is a 30 inch 13 twist there are plenty of post on here from me a about the subject. Good Luck

Dean

I have no idea about what type of powder kernel shape is oldest but do know that superformance is a bit of a sleeper, like rl17 it has a progressive, non linear pressure curve. Quite advanced indeed, used it in the past and didn't like the extreme velocity spreads BUT that was with heavier bullets that wouldn't let me fill a case right up. With both ball powders and progressive burn rate powders I've since learned a full or even slightly compressed charge produces far more consistency, this effect being present with other powders but far more pronounced with these types.

the use of hbn treated barrels and bullets also allows for bigger charges.

hbn is not at all the same as moly or ws2, a far superior product for this application.

As I mentioned earlier I do plan on trying some hammers in the future, leaning strongly towards the 124 hammer hunter but have not ruled out the 151 absolute hammer either.

 

[Slibey]

energy at muzzle and at distance are two different things as far as bullet weight and coaficint.

 

[Frank in the Laurels]

Order your barrel....going to need one shortly !

 

[Coldfinger]

Until the mid 80's Weatherby used to sell 110 grain bullets for their 300 WBY. Loading books had recipies for them as well, anywhere from 3500 t0 3950 FPS.

I used to get 4000-4100 out of 300 wby mag. 110 grain Sierra hp and a ton of IMR 4350. Brass was done in 3 firings but the basketball size holes in deer were rough on meat. The vitals were usually just gone as well.

 

[Calvin45]

energy at muzzle and at distance are two different things as far as bullet weight and coaficint.

I think we all know that here. For true distance I've already established a load with a 225 eld m (ballistic coefficient .777).

 

[asd9055]

I used to get 4000-4100 out of 300 wby mag. 110 grain Sierra hp and a ton of IMR 4350. Brass was done in 3 firings but the basketball size holes in deer were rough on meat. The vitals were usually just gone as well.

Weatherby sold these 110 grn

 

[Calvin45]

Order your barrel....going to need one shortly !

Oh I think she's got a fair bit left in her haha. The hex boron nitride really does make a big difference on that front as well, you've impregnated the barrel steel (not just plated it but embedded into the porous structure of the metal) with a ceramic that can take heat like it's nothing and preserves the metal it's in very well.

I also don't get the point of owning magnum cartridges and being especially concerned about barrel longevity, though .300 win mag is pretty tame compared to many barrel eaters. This is a pure and dedicated hunting rifle. And I'm a busy man who doesn't get to shoot as much as he'd like. These two factors mean this rifle sees less than 100 rounds fired a year, and I NEVER do rapid strings of more than 2 or 3 rounds, ever.

 

[scope-eye]

If you use this kind of load for punching paper, well if you don't have anything good to say don't say anything at all. Either that or you have a lot of disposeable income, But after you are sighted in that is a lot of bounty before a barrel goes south.
well woth it in my opinion.

Dean

 

[Calvin45]

Woooooooohooooooooo!!!!!

update everybody!!!!

got the chrono and got to shoot over it today. I am beyond pleased. I closed the muzzle brake, not sure if that actually makes the barrel an honest 26 inch but it's one of those savage brakes you can just twist to open or close. The point of impact shifted wildly from doing this, gonna chrono it again sometime with the brake open and if it's not losing much I'll just leave it open.

anyways….I'll just include the pics of the chronograph readings about 15 feet from the muzzle. I had a hard time believing it, would have been a skeptic in the past but folks such as @scope-eye and @ButterBean helped me believe in this kind of light and fast performance again.

again, the specs are Peterson brass, fed 215m primers, 89.5-90.0 grains of superformance (I wasn't as meticulous down to the tenth of a grain as i sometimes am) powder, lightly compressed under a 120 grain Barnes TAC-TX (initially designed for .300 blackout, we're going a lot faster haha) that is treated with hexagonal boron nitride.

no primer cratering, moderate flattening, no ejector marks on brass, no stiff bolt at all (operated easily with one finger, cases just lazily fall out). Upon resizing, no notable case length change, no web expansion, no discernible difference in primer pocket tightness from virgin brass.

I hate that we have to say this but obviously this is a warm load and i worked it up slowly and safely. This is safe and functional in my firearm, not to be assumed safe and functional in others. Start at least 10 grains under this and work up if you should choose to do so. We are adults here, let us be responsible for ourselves even as we celebrate with each other's achievements.

Be prepared to try and understand the embarrassing happy dance I did when I saw this…