A Burn Rate Chart can give you clues about what that charge may be, but you always should be conservative in your estimates. If the fastest burning powder calls for 23.0gr start charge, and your unknown powder is indicated as being on the slower side of the window, a 23.0gr charge may be a safe starting point.

Using a powder comparison burn rate chart is a useful indication of other propellants that are ranked close to the current brand you are currently using. This free

9,3 x 62. 9,3 x 66 Sako. 9,3 x 74R.375 H&H Magnum.416 Rigby.444 Marlin.45-70 Government.458 Winchester Magnum.50 Browning. Part of Nammo Group Lapua | SK | Berger Bullets rates ideally suited to the .50 BMG. They also have some application in a few other very large capacity cases, such as the .338 Lapua Magnum and the .30-378 Weatherby Magnums.

According to the burning rate chart in the company’s 2019 Reloading Guide, N130 is similar in burn rate to Hodgdon BL(C)-2 and Alliant Reloder 10X. The N133 I mentioned has a burn speed similar to IMR 8208 XBR and Hodgdon Burning rate generally is perhaps a tad faster than 231 or generally about like Red Dot. N330: This is a handgun powder that has a burning rate similar to Green Dot, No. 5, or PB. Data is currently available for 9mm Luger, .38 Special, .40 S&W, .44 S&W Special and .45 (Long) Colt. N340: With a burning rate not dissimilar to Winchester Slowest Fastest . . . Burn rate Chart 1) Norma R-1 2) Winchester WAALite 3) Vihtavuori N310 4) Accurate Nitro 100 5) Alliant e3 6) Hodgdon Titewad 7) Ramshot Competition Lapua or Win: 2950+ fps: Jerry Tierney Palma Load (Charge varies with lot) Hodgdon Varget: 47.0: CCI BR2: Berger 155: Lapua: 2900+ fps: John Whidden Palma Load: Alliant Reloader 15: 44.0: CCI BR2: Hornady 168 A-Max: Lapua: 2700 fps: Very Accurate, 1/4 moa to 400 yards.

Especially for .270 Win-chester and 6.5 x 55 Swedish Mauser.

The burn rate of is medium to slow on the scale of our rifle powders. The N160 is commonly used for big game hunting ammunition especially with heavier bullets. Reloading recommendations by our pros. The N160 is a great solution for handloading a long-barreled 6,5X55 SE caliber rifle using using eg. a Lapua 6,5 mm GB458 9,0 g / 139 gr OTM bullet.

The following powders are listed by their approximate burning rate, from "fastest" to "slowest". .300 Lapua Magnum.300 Remington Ultra Magnum.30-.378 Weatherby Magnum.

2018-12-25

RAMSHOT. ALLIANT. HODGDON. IMR. WINCHESTER.

N560: Burning rate like N160. Especially for .270 Win-chester and 6.5 x 55 Swedish Mauser. 2014-01-24 · The Lapua Burn Rate Chart (shown below) places URP in the burn range of H4350 and Vihtavuori N150, and Norma says “burning rate for URP is close to our 204 but on the quick side.” Norma 204 is slower than H4350 but a little faster than H4831sc. MRP is close to the original H4831.
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Here is the latest table, released by Hodgdon in November of 2019. You’ll want to download this Powder Burn Rate Table. This table shows the latest IMR powders including the Enduron series (IMR 4166, 4451, 4955, 7977), highlighted in green.

98. VihtaVuori N140. 3. VihtaVuori N310.
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In this graph you can see the effect of bullet length to gyroscopic and dynamic stability in a .338 Lapua Magnum rifle with a 1:10” twist rate. The shorter 250 gr GB488 Scenar (red graph) retains its stability better than longer 300 gr GB528 Scenar (blue graph), but reaches the transonic region a little earlier than the ballistically better 300 gr bullet.

Lapua … 2021-02-17 Lapua Ballistics always offers the latest, Doppler proven Lapua cartridge and bullet data. It also includes the option to define custom bullets manually. At current, the Lapua Ballistics App is available in no less than eight languages: English, German, Finnish, Norwegian, Polish, French, Spanish and Afrikaans, for Android and iOS mobiles, free of charge.

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52 Accurate Arms No. 7. 102 IMR Co IMR 4320.

Lapua Bullets Lapua bullets are practically handmade. Lapua has been manufacturing high-end bullets for a long time and for a multitude of applications. The D46, which we developed way back in the 1930s, is still one of the best industrial full metal jacket projectiles.

Lapua bullet selection. Lapua factory loaded ammunition.

1. NORMA R1. 49. Alliant Blue Dot. 97. Alliant Reloder 15. 2.