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Best projectile for long range with a 300 win mag

42994 Views 32 Replies 20 Participants Last post by  Darkker
I have a surgeon built 300 win mag in a McMillan a-5 with a 27.5 Krieger barrel and night force nsx 8-32. I'm very new to magnums and reloading but plan on loading for this rifle I was thinking on Sierra 190 bthp. But don't want to dump a bunch of cash on bullets then find something that does better for this application.... Any advise?
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But one more question if I like nosler rounds on my rifle what do u think on factory seconds? How blemished are they?
Back in the 'day' about the only blemishes one could find is some of the bullets had a slightly longer soft point compared to others. Enter the 'Ballistic Tip' era and I could never see anything wrong with the ones I was using. Word on the 'street' was Nosler used to just stock their shelves with standard production run bullets at a reduced price to bring people in (especially locals) as a 'voice' for the quality of their products in hope the word would spread - which it did. Either way the 'seconds' are a great deal for anybody who can conveniently get them.
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I've bought quite a few of the blemished one's over the years, and honestly couldn't see anything wrong with them visually or on paper.

As for long range projectile for the 300 WM, I've used the Speer Hot Core 165's and 180 gr. for several decades with excellent results out to 600-ish yards on deer and other 4 leg critters. The Spitzer PSP's don't have a particularly high BC though.

I started with the Hot Core back in the 1980's in which I shot an antelope at over 600 yds.. In and out through the heart and lungs and exited out the shoulder. He hit the ground and then got up and started running dead, at which time I put one through his neck. After that kill I was convinced they were pretty good long range hunting bullets. Since then myself and family members have been dropping game with them at varying long distances, including my DIL who killed a couse deer last year at 528 yds..

No doubt Noslers will get you some very good results also, I can't say anything negative about them, I like Noslers. But for the money, and considering how well the Hot Core has performed on game for me, I keep using them.

SMOA
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. . . H-1000 and RL-22. Any thoughts?
Excellent powders for large-capacity cases. I have used RL-22 in my .300-caliber magnum mildcat at 400 yards with 178-grain Hornady A-max bullets. That combination resulted in a ten-shot group measuring 1.44 moa-- my best-ever group at 400 yards. In the interests of full-disclosure, I must admit that group is my best-ever group at 400 yards because it's my only group ever fired at 400 yards. Why so large a group? It was hot, there was plenty of heat mirage screwing things up and I'm a bad shot. Mostly me being a bad shot...
Barnes 200 LRX. Should fly almost as flat as the 200 gr Accubond and give much more consistent expansion performance if the shot is up closer. That is the best of both worlds in my mind. Push it to 2600 ft./s in 30-06 and it carries a ton of energy at 300 yards. Think of what it will carry in a 300 WinMag...

Never mind I did the calculation for you. It carries a ton of energy to 500 yards.
I have a surgeon built 300 win mag in a McMillan a-5 with a 27.5 Krieger barrel and night force nsx 8-32. I'm very new to magnums and reloading but plan on loading for this rifle I was thinking on Sierra 190 bthp. But don't want to dump a bunch of cash on bullets then find something that does better for this application.... Any advise?
That's what I use in my 300 WMag, in front of 72.4 gr. of RL-22 and a CCI 250 primer. Good long range target load, but worthless for hunting.

With a 27.5" barrel like yours, I'd use a 200 - 208 grain bullet of the same design. You'll probably get nearly the same muzzle velocity with the heavier bullet that I do with my 24".

Oops, didn't realize this post was four months old. My bad...
Blemishes are just that. Some oxidation or other issue. Sierra sells theirs off, too. Neither Sierra nor Nosler want their bullets getting a bad reputation, so you can be pretty sure they would toss anything that would actually have poor ballistic performance.
Blems/rejects/seconds are not always just superficial stains or marks.

In the "good Ol'Days" we could buy the Speer "rejects" by the LB. at Lolo's in Lewiston, Idaho.

That went on until there were changes in the Speer, CCI and the rest of the Good Ol'Boys company ownership and the pencil pushers decided that they should market the seconds in another way. The supply at Lolo's dried up and so did their business which had flourished for many years.

I still have in hand, some 150gr., .270 Grand Slams, "Rejects", that have nose metal from the jacket formed in on itself, the exterior of the bullet looking correct except for the fold in the jacket material at the nose of the bullet.

In this case, the blemish goes beyond skin deep.

I have shot many "rejects" in .22 and .243 caliber and not only did they usually group well, but were devastating, as expected on vermin of one kind or another.

So, Unclenick is mostly correct in saying that the blemishes are usually surface imperfections, but that is not a 100% situation as proven by my long held supply of those .270 Grand Slams.

Crusty Deary Ol'Coot
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I have never had blems shoot any different than standard non-blems.

Unless they are x-raying all the projectiles, the only things they can pick out are surface imperfections, or they are outside of the weight tolerance by a small margin.

Ymmv, however I don't agree that blems for 99% of bullets affect ballistics.
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Sorry, I was incorrect when yesterday I said that the Speer Grand Slam bullets with the visible defect were 150gr .270 bullets.

Unless I also have some similar .270s on hand, the bullets were 30 cal. Grand Slams.

The point is, "blems/seconds/rejects" may have more issues then just a surface tarnish etc.

The attached images will prove my point!

Crusty Deary Ol'Coot

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I have a surgeon built 300 win mag in a McMillan a-5 with a 27.5 Krieger barrel and night force nsx 8-32. I'm very new to magnums and reloading but plan on loading for this rifle I was thinking on Sierra 190 bthp. But don't want to dump a bunch of cash on bullets then find something that does better for this application.... Any advise?
Need to know the rifling. Some bullets require a faster twist and as noted: for what use?
Nhar145,

"Don't want to dump a bunch of cash on bullets ------------------"

You need to know that your rifle will tell you what it likes and you may well need to try a few different products.

Just a personal opinion, but if I wanted optimum in a bullet it would not be a Sierra bthp!!!!!!!!!!!!!

Of course, there are those that like such things, but there are a number of better bullets and those such as the Nosler Partition 180 and 200gr would be just two that qualify.

Then, there are a number of "bonded" 30cal bullets - Hornady, Swift, Nosler etc., that would all be equal and likely better then the Sierra offering when it come to the integrity department, something that the Nosler and Swift partition bullets excel at.

Have used the Nosler Partition for years in 300 Win Mags and never once had a reason to be sorry with the results on game.

My longest ever game animal was taken at 500yds with a 7mm Mag and a 160gr Nosler Partition. One shot, bang/flop.

There has only been two rifles in which Nosler Partitions did not group well, including .243, 7mm mag., 300s. First was a post 1964 Winchester 300 with a bad barrel and the second was a Browning A-Bolt 300, both of which should have never left the factory with barrels in that condition. Don't know how it happened, but the Win had a tight spot in the barrel and not only was accuracy so so at best, but high pressures QUICKLY showed up. The Browning looked like someone had run a threading tap down the bore and it would shoot no bullets tested good or consistently.

Crusty Deary Ol'Coot
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I just got 200 accubond nosler, 190 smk, 210 vld and probly gonna test some 215 hybrids with h-1000 and rl 22.... Any thoughts?
In my considered opinion the 220 grain bthp is the most efficient At a velocity of 2750 it still retains way over 1000 ft lbs at 1000 yards enough to kill a deer cleanly with one shot. Remember though making those shots Takes a lot of mathematical knowledge and even more practice to reliably place your bullet even within 10 inces
About 1100ft-lbs of energy with a Sierra 220 SMK, and that leaves you with a wee under 1500fps velocity (your atmosphere dependant). That velocity isn't reliable for consistent opening of those bullets, or even what Berger states for their hunting VLDs. It's also an ambitious max load for the 300WM.

Not something I'd recommend for any game animal, personally.
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