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Old 12-26-2007, 02:28 AM
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What is the difference in performance between the Sierra GameKing Bullets 30 Caliber (308 Diameter) 165 Grain Hollow Point Boat Tail and /or the Sierra GameKing Bullets 30 Caliber (308 Diameter) 165 Grain Spitzer Boat Tail (besides the obvious softpoint / hollowpoint)
I would appreciate anyone’s thoughts on the pro’s and cons between hollow point and softpoint.
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Old 12-26-2007, 03:56 AM
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speaking only of accuracy, and only at targets out to 300, the 165 BT game king and the BT MATCH 168 shot almost to the same point of aim and same group size out of my match Garand '06, using the same load in each.

I cannot speak of wound channels or it's perfoemance on game, but they surely are accurate.
Chris in NH.

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Old 12-26-2007, 09:01 AM
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Sierra has an ad running in Precision Shooting that compares the GameKing to all the various bonded core brands. In gelatin it retains a little less weight and achieves a little less penetration, but is still 95% of what the others achieve. Where it differs most is its accuracy is substantially better. As to performance on game, that depends what you are shooting at? The softpoint should expand more gradually and penetrate a little deeper. Probably a better choice for larger and tougher targets. Also a little less likely to cause excessive bloodshot meat on a close-up shot at a deer-size target.
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Old 12-26-2007, 07:05 PM
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With the 30 caliber bullet's you've mentioned, I'll guess that big game is what you would be shooting? If so, I wouldn't ever use a hollowpoint on any big game (there are some exceptions, like the Barnes TSX and Failsafe, which technically are hollowpoints, but have other design features that control expansion).

The Sierra Gameking is a good bullet, although has it's limitations, mainly related to velocity, on big game. I shoot the Gameking 250 grainer in my 338 Win Mag, and it really performs well, both in accuracy, and in killing elk and deer. Using the Gameking, I'd stick to heavy-for-caliber bullets, in general. There's quite a bit of difference in performance on big game between a 250 grain bullet at 2680 fps muzzle velocity, and a 120 grain bullet at 2950 fps (from a 25-06) muzzle velocity.

If you're shooting paper, I've found that the hollowpoints tend to be more accurate on average, and I suspect that is due to the more consistent tip, compared to a softpoint that could get a bit deformed.
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Old 12-27-2007, 08:43 AM
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Welcome to the forum Packard. Rules are simple, be nice and join in.

Like Shawn I've been shooting the Sierra Game King Spitzer Boattail in my 8mm Rem mag since it came out. I push the 220 grainer at 3080 fps and It worked fine on everything from Idaho whitetail and mulies to Alaskan Brown bear. Both the 8 mags I've shot did under inch groups at a hundred yards.

Some folks claimed it was to fragile a bullet to work well on the big bears, moose and elk, but I haven't found that at all. I've never used any of their hollow points on game I expected to eat.
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Old 12-27-2007, 09:52 AM
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Early this Fall I bought a Ruger Hawkeye in .257 Roberts. While starting to sort out this new-to-me cartridge I wrote to Sierra with a question which I print here:

----------------------- Original Message -----------------------

From: "dick" <[email protected]>(By way of [email protected])
To: DUANE (Duane Siercks) <GOLDMINE User>
Date: Mon, 1 Oct 2007 08:48:54 -0500
Subject: Bullet usage question

Is your GameKing 25 cal., 120 gr. HPBT (#1650) bullet appropriate for antelope and deer hunting in the .257 Roberts cartridge? What is a reasonable range for MV with this bullet/cartridge combo?

I am an experienced reloader of practice and hunting ammo in other calibers. I do not load for Maximum velocity and I rarely shoot at game beyond 200 yards. The .257 Roberts is a new cartridge for me and I do not have your reloading manual.

Thanks for your reply,

Dick Naumann Laramie, WY

Here is Duane Siercks' reply:
"The 120 HPBT bullet is a very tough bullet and while it will work, there are better choices. The 90 gr HPBT will be better suited to antelope and deer, giving better expansion. Either the 100 gr SPT or SBT will be optimum in flat trajectory and minimal wind drift and will also give better expansion than the 120. The 120 would actually be best for large mule deer and elk sized game in the 257 Roberts. This is one of my favorite cartridges. I have attached the load data to this e-mail."

As time was short, I ended up using other manufacturers' bullets for an antelope (Hdy 115 Spire Point) and two whitetails (Nosler 115 PT). I am looking forward to doing load development with the 120 gr. Sierra HP this coming year. BTW, very prompt and personal response to my inquiry. That speaks well for the Sierra customer service program.

FWIW, I am not sure how this extrapolates to the .30 cal. question posed in this thread. It should give food for thought, however.
"Hunt close, then get closer."

Last edited by naumann; 12-27-2007 at 09:54 AM.
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Old 12-27-2007, 10:34 AM
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While a lot of manufacturers make HPs on various form they all are made that way for one thing controlled expansion and higher BC. Some believe HPs always give explosive results, not always true as stated by Sierra in the above answer. Traditionally Sierra has made HPs for big game with a better BC than average for longer ranges on tougher game animals. Their match HPs don't work well on game as they do not expand as well as their non match counterparts. I use the 160gn SBT in my 7mm/06 and the 165 SBT for .308 both perform very well in whitetailed deer.

The SBT for the 257 Roberts worked well for my applications on white tailed deer. I shot the 257 Roberts in a 722 Remington and a Ruger 77RT, in informal bench rest matches for 3 yrs, and used the 117 SBT for that purpose and used the same rifles and bullet combo in deer hunting for at least 10yrs. It performed flawlessly on each deer taken. IMR4064 and IMR4320 was the powder I used.

Last edited by Swany; 12-27-2007 at 10:40 AM. Reason: BF
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Old 12-27-2007, 10:35 PM
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I can speak from experience that the Match King 168 grain BTHP does not work well on whitetail deer. It might work better on larger game such as elk but it does not expand very well at all on whitetails. You would be much better off using the 165 Game King for that application. The Game Kings do tend to fragment a bit more than some other bullets I have used but they do a great job on deer. The Combined Tech. 168 ballistic silvertip is very effective on whitetails also. Good luck.
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Old 12-28-2007, 09:57 AM
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I use the GK BTSP 165s in my Tikka 308, one ragged hole at 100 yards

the GameKing HPs are a tougher bullet than the SPs according to Sierra
I have always had good luck with SPs on whitetails, 223, 243, 25-06, 22-250, 308

some claim the Gameking SPs are too fragile, don't shoot a deer in the shoulder at 50 yards with one travelling close to 3K FPS and you will be fine
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Old 12-28-2007, 10:54 AM
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I've always used their Hunter bullets, now Pro Hunter. I use them to 300 yards in my 8x57. I use Boat tail in my 7mm Rem Mag, but the flat base works better for Whitetail. Hp's on large game, No. 150 or 175gr are bone crushers at 2300 to 2500fps. I use 165gr bonded in .308. Again, a boat tail gives no advantage out to 300 yards. Jim
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Old 12-28-2007, 06:16 PM
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I haven't used the gamekings in 30 cal, but I use them in 6.5. Best bullet I have ever used on VA deer. Absolutely no problems and all one shot kills from 30 yds to 250 yds! Great bullet in my opinon.
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Old 12-31-2007, 05:25 PM
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got to test this weekend, got 4 deer at ranges from 120 to 250
two does at about 130 yards, both through the neck, dropped in the scope and never even flickered
about a 1.5" exit wound

1 doe at 250 through the heart, same bullet performance but deer ran maybe 30 yards and folded

1 buck at almost pitch black on the move at 150 yards, drilled through the shoulder, and came out the other shoulder, ran about 50 yards and was dead. Shot was standing with the gun rested on a very cold metal pole for a stand above me that my son was hunting in so I was about an inch forward.... but dead deer and the load was flawless
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Old 01-02-2008, 07:40 PM
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I live within 1 1/2 hr. of the Sierra bullet factory and had the same question (a couple years ago) about the .308 dia. 165HPBT "posted" here and I got the same answer from their "techs" as Swany - "it is a tougher bullet meant for bigger game than deer". I was told the same for the 120HPBT in the .257 dia. I've shot a couple of deer with the 120HPBT, as has my wife out of her .250 Sav., with one shot going through both shoulders. I never recovered any of the bullets on any of the deer shot. One deer with the 165HPBT, while no recovery of the bullet, the deer did not go any further than when shot with the 165SptBT of the same make. In other words, while I can't say I have any conclusive proof they are "tougher" bullets than the standard spitzers (which I like because they are so accurate), I feel certain that I can take Sierra's "word" that they won't come apart like the "thin jacketed" hollowpoints I'm used to in varmint rounds; they do indeed seem to have a "thicker" jackets than the "norm". The tech I talked to also recommended the 165HPBT for elk, while he did not recommend the 165SptBt for the same annimal. Riley
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