Home Forums Reloading Big Game Rifles Partition accuracy

This isn't a fair assessment of the partition because i've only tried one size in one rifle and that was a 115gr in my 25.06 but here's the results. I just absolutely could not get this gun to shoot those bullets with any consistent accuracy no matter what combination i tried. I juggled powders, primers, brass, played with seating depth all to no avail. After going through more boxes than i care to remember i decided this gun just didn't like that bullet for some reason. I went to the accubond and the results were the total opposite, it shoots very accurate with those so thats what i use in this particular rifle. It also shoots the Speer 120gr spitzers well so it may like the 120gr partitions just as good but i like the performance of the accubond so well that i've never had a reason to try anything else.

Your experience with that 25-06 certainly proves that every rifle is a law unto itself when it comes to accuracy.

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These are basicly factory rifles. I've been able to get better groups with partitions than most other bullets (sometimes including gamekings) in nearly every rifle I've shot them in.

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I get the type of results with most of my rifles.

I have no expierence with a 338-06?? I've had good luck with 225 & 250 Partitions in a .338 Win and a .338 RUM. What powder are you using. I'd likely try IMR 4350 or something in that range. Sam

I knew the 338-06 wouldn't have enough velocity for your taste. I generally use H4350 or N550, but have tried others. I had this rifle built a couple of years ago and have put 900+ rounds through it, so I've tried a few things. I've got one of these RCBS Case Master tools in my hands and plan to check some of my brass and loaded ammo tonight. It will be next week before I get a chance to shoot again. I'll let you know what I discover.

Bob and Mathman,
I have followed your suggestion regarding checking case and bullet runout and may have found a problem.I have been using a batch of Federal cases that have .002 - .003 runout. When loaded I found the ammunition loaded with Hornady bullets had .003 to .004 with an occaisional .005. However, the ammunition loaded with Partitions varied from .004 to .010. I guess I'm in the market for a new seating die. I also checked my Norma brass and found it to be within .002. Thanks for the assistance.

Watch your sizing die;check the brass before and after you resize.If it's your seating die,order a Redding Competition. Sucks paying for them,but flyers suck, too. Let us know how you do. Wonder why that happens? Good luck.

Mathman: Had not read your post till now.Is the bevel the issue on the runout? Had not thougt of that,makes sense! Thanks.

It may be. Typically you're trying to balance the bullet on the mouth of the case as straight as you can before the upstroke into the seating die. With boat tails or flat bases with a generous heel radius it isn't too hard. Those with a sharp heel, the pesky little 87 grain Speers I'm playing with for example, can make life difficult. That's even with properly chamfered case mouths. There are several ways to deal with this, and a seating die that keeps the bullet aligned before the actual seating begins is one of them. Expanding the case mouths with a stepped mandrel rather than a regular expander ball is another. If you don't mind adding an extra step to the reloading process you can improve things with a conventional die too.

mathman

never had any success with them, tried them in my super accurate 7mag years ago they would not shoot, again in 280 rem , once more in 6.5x55, another try in 270 win. don't know what the preoblem was. hornadays, speers, barnes x all group well if the rifle is up to it. Could it be the short bearing surface, because they sure were fast, 50-100fps faster. also the nose of the bullet smeared off under recoil in the magazine, didn't like that.

Wonder if that's why the Competition dies worked so well; and whether that is the reason you hear some people say they don't shoot.The "runout" thing was an eye-opener for me,watching fliers dissapear,etc. Not just one 30/06,but two of them!Makes me think about the times I struggled to get a rifle to shoot and what the real problem was.

I use Nosler Part. for almost all my hunting. If I'm serious about the hunt I'll be shoot'n Partitions. Now if I were to enter a match shoot where accuracy was everthing,I would not use the Partition. That said, I've always been able to get the newer Partitions to shoot, generally around an inch or so for three shots. I'm assuming an accurate rifle is being used. And I'm assuming good ammo.,no issues of concentricity,etc. My accuracy requirement is three shots near one inch, with no groups over 1.5 inches. at 100yds. The exception to this rule is if game is large and the expected range short.

What Alpine said....they are better bullets today than in the past...accuracy wise. My last CF addition, a .250-3000, prefers NPs to BTs for accuracy. Go figure.

The 175 gr. Partitions in the 7 Mag and the 200 gr. Partitions in 30 Cal stuff shoot right at 1 inch for me.

Wayne

Jim, I'll take that as a compliment! Guess my taste in rifle calibers mirrors my personality!! I would have guessed you to be a 338/06 man!! Anyone who uses a 7x57 will like the 338/06. I have a couple buddies who use the 338-06 and they are exceptional shooters. The same guys shoot 7x57s!! They have been working on me and I have been impressed by the performance they have gotten outta both the 7x57 and 338/06. I've even been considered breaking down and buying a 7x57!! I'll always remember that mulie buck you shot in it's bed with that 7x57. Sure impressed the mulie and me! When you get this sorted out I would like to know more about your findings, especially about this runout thing. BTW when you coming back east for a couple days of deer hunting?? Say hello to Momma. Sam

Never a problem in multiple calibers & guns......6mm, 25-o6, 270, 280, 7 Mag, 30-o6, 300 WM, 338 WM, 375 H&H.

Never once had to go to something else because Partitions wouldn't shoot......more than I can say about some other hunting bullets.

MM

Usually if you can't get your good rifle to shoot 3 Partitions into MOA or less either your rifle or your shooting isn't as good as you think.........................DJ

My experience with Partitions has been excellent. In my rifles, they group as well as Ballistic Tips, although the point of impact changes slightly.