Anyone have load data for the 100 gr sierra varmint HP. I don't see anything in the handbooks or any of my manuals. The closest thing I can find is for the 100 gr. Lapua. I have 8208 xbr, benchmark, and comp ar powder. Any help or experience with the bullet would be greatly appreciated.
Load data for 100 gr. sierra varmint hp
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Originally posted by achristian8 View PostAnyone have load data for the 100 gr sierra varmint HP. I don't see anything in the handbooks or any of my manuals. The closest thing I can find is for the 100 gr. Lapua. I have 8208 xbr, benchmark, and comp ar powder. Any help or experience with the bullet would be greatly appreciated.
When ever I have faced this situation, I used the same load as any other bullet of the same weight.
Or, you can always go with a load for anything heavier.
LR55
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My J & T 6.5 Grendel measured 2.148 with 100 grain Sierra Varmint using Hornady C.O.A.L. gauge. The bullet is pretty blunt and I loaded mine to 2.140 with 29.0 grains H-335 and Remington small rifle primers in Hornady brass. I have used this load and powder in PPU cases with a couple different large rifle primers ( PMC and another non US manufactured primer, can't remember brand).
I have IMR 8208 XBR but I haven't used any, I have looked for AR Comp to buy but have never found any locally. I bought several hundred 100 grain Sierra Varmint factory seconds a couple years ago and they have been just as accurate as the retail bullet in my rifle.
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I got on average 1"-1.5" 5 shot groups at 100 yards with the 100 grain Sierra Varmints. I got similar results with 90 grain TNT using Accurate 2230 powder. I think this is good enough accuracy out of a 16" non free float barrel I'm using. I haven't shot paper targets beyond 100 yards so I can't say how the bullet does at extended range. A friend used the Sierra 85 & 100 grain varmint bullets in a 264 Win Mag and got excellent accuracy.
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Originally posted by achristian8 View PostI used the 90 grain tnt to take a nice buck at a little over 300 yards. It had no exit wound but the deer dropped in its track. I would have bought those but they were backordered. I will call seirra tomorrow and post the data they give me.
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I found the load data in varmint magazine. There is a 4 page article on the grendel with two pages of load data. Its worth picking up if you come across it. Here is the data for the 100 gn. Sierra varmint HP. Fired from a factory AA hunter with 18 inch barrel.
c.o.a.l. 2.050 in.
Powder - IMR 8208 xbr.
Charge (gr.) - Velocity (fps)
28 - 2581
29 - 2664
30 - 2762
31 - 2848
Powder H335
c.o.a.l. - 2.050
Charge (gn) - velocity (fps)
28-2556
29 - 2629
30 - 2707
31 - 2848Adam
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