.300 win mag 150 gr. accubond load?

[TonyM]

Allright,
So I unloaded (pulled bullets) of nearly all of 100 loads of 150 grain accubonds over 75g IMR 4831 due to terrible accuracy (see my previous post regarding reusing unloaded bullets/powder).
:banghead:
Has anyone found good loads for 150 grain accubonds in .300 win mag? I've used the published data for IMR 4831 per Nosler and it was not good. I've got plenty of other powders, just wondering where to start, H1000? Perhaps this bullet is just too light for .300 win mag?

 

[Captcurt]

Same thing in 300WSM.

Tony,
I had the same problem with my 300WSM. It doesn't like 150's in any way,shape, or form, but man does it like the 165's. I went from 1 1/2" and 2" groups to under an inch just by changing bullet weight. I've taken 6 deer with the Accubond and it has been awesome.

 

[NCsmitty]

You now understand the value of working up small batches of test loads. Take it back a step, and load some starting charges of imr4831 and H1000 and see if they provide any hope of using the 150's. If you have any of the 4350 family of powders, try that.

If nothing works, and sometimes that happens, abandon them and do the 165gr or 180gr thing.

I'm just wondering if you are using magnum primers for these loads?



NCsmitty

 

[ants]

R22 for 150g bullets. You'll have to work up the best charge for your rifle.

 

[jackpinesavages]

Well, my error, I guess the heavy-handed mods don't want decent info. or decent prices around on reloading info. or materials. Good luck on your hunt!

 

[TonyM]

I'm currently using WLRM primers...shooting out of a browning a bolt white gold medallion, 26 in bbl. Looking for a blistering load for antelope at 300+ yards. I may have to just stick with the 165 grain Sierras. The hunt is less than a month- I've already got a good load, just never quite satisfied/ a bit OCD...

 

[bfoosh006]

TonyM, sent you an IM...

 

[TonyM]

Found it, actually found 2-- H1000 83.8 or IMR4350 73g-- both sub MOA....opted for H1000 due to supposed temperature insensitivity..

 

[pricedo]

Allright,
So I unloaded (pulled bullets) of nearly all of 100 loads of 150 grain accubonds over 75g IMR 4831 due to terrible accuracy (see my previous post regarding reusing unloaded bullets/powder).

Has anyone found good loads for 150 grain accubonds in .300 win mag? I've used the published data for IMR 4831 per Nosler and it was not good. I've got plenty of other powders, just wondering where to start, H1000? Perhaps this bullet is just too light for .300 win mag?

I'm going to try the 150 grain Barnes MRX BT bullets in my T/C Icon .300 Win. Mag..........has anyone else??

I'm going to go with IMR-4831 because I have lots of it around & the Barnes manual Min - Max charge range for IMR-4831 is 71.5 - 76.5 grains (COAL 3.33").

The 150 grain MRX BT has a BC of .420 which is very respectable.

These bullets cost about $2 each but are deathly accurate in my Savage model 116 in .30-06 Sprng.

You can push the crap out of an X bullet and they won't disintegrate like conventional bullets do.

I drop a weight category or two when using X bullets as a 150 grain Barnes X bullet will do the job of a 180 grain conventional bullet because they won't break apart even in bone & the faster you push them the better.

I've got the moose kills to prove it (all 1 shot).

 

[TonyM]

I'm getting great accuracy with H1000 at .2 grains below Nosler listed max with the accubonds. Hopefully I'll find out how they do on Antelope in a week. I use the Barnes in my .243 and they are great, it just pains me to spend that much on a bullet. I have not had the opportunity to take game with them yet, however I trust them based solely on empirical evidence.
I tend to go through at least 30 or so rounds finding the right load, at 2 bucks a pop, not including the brass, powder and primers, that's pricey.

 

[pricedo]

I'm getting great accuracy with H1000 at .2 grains below Nosler listed max with the accubonds. Hopefully I'll find out how they do on Antelope in a week. I use the Barnes in my .243 and they are great, it just pains me to spend that much on a bullet. I have not had the opportunity to take game with them yet, however I trust them based solely on empirical evidence.
I tend to go through at least 30 or so rounds finding the right load, at 2 bucks a pop, not including the brass, powder and primers, that's pricey.

When bullets are that expensive the first load that gives me acceptable terminal ballistics (accuracy of < MOA & near book-max velocity) is the keeper.

I won't waste a bunch of bullets that literally cost their weight in gold in order to fine tune a < MOA group by 1/4" for shots on elk & moose that are the size of a barn door when practical shooting ranges are usually much less than 200 yards.

Barnes & the resellers need to get a bit more realistic in their pricing. There's nothing wrong with free enterprise & making a profit but the present prices are nothing short of gouging.

 

[worldfishnski]

Bottom line:
Is a 150 grain bullet to light for hunting when it is loaded to near maximum?

I have read about frequent pass-throughs where the bullet (apparently) never expanded.

I was planning on loading this week some 150 grain Sierra Spitzers (2130) and then experimenting with 69, 70 and 71 grains of H4350 to see which round my gun likes best.

I also have some 150 gr Nosler solid base BT spitzer that I could load up but I have not been able to locate any data a powder weights of H4350for this bullet

 

[Captcurt]

Worldfishnski,
If a bullet is constructed properly and is a controlled expansion bullet, it should work fine at top velocity.
If a bullet doesn't open up at near muzzel velocity it isn't going to open up at all.
If you max out a Ballistic Tip it will blow all to pieces at close range. (Been there, done that.) Can't say anything about the Sierra. Never shot em.

Tony, Is the load with the H1000 with the 150 gr?

 

[TonyM]

Yep....delayed reply, but H1000 worked great with 150 grain accubonds...two doe antelopes at over 400 yards (range finder) and a nice 8 point white tail at just over 100 yards.

 

[gamestalker]

Maybe switch to RL22, and step up your bullet to a 165 gr. or even a 180 gr..

 

[Kernel]

While 4831 is a classic powder for the .300 Win Mag, it gained that reputation shooting heavier bullets. In my view with 150 grain bullets 4831 is a hair to slow for ideal performance. I’d look to powders like RL19, N560, and Ramshot’s Hunter. Conversely, the original poster found his nirvana with H1000 (at least from the standpoint of accuracy. Velocity wise, we don‘t know), which is quite a bit slower than 4831. So there’s that.

 

[TonyM]

I myself was suprised the H1000 gave the best results. I gave it a shot based on the Nosler Reloading Guide listing it as most accurat powder for that bullet....low and behold they were right (at least in my gun). I believe it chronyed at about 3280 (don't have data handy) out of a 26 inch bbl on a Browning A Bolt.