Rifle hunting ammunition with Sierra bullets

SBT GameKing® – Spitzer Boat Tail bullets are designed for hunting at long range, where their extra margin of performance can make the critical difference. GameKing® bullets feature a boat tail design to bring hunters the ballistic advantage of match bullets. The streamlined tapered base of the boat tail bullet greatly reduces drag, which results in higher retained velocity, greater striking energy, a flatter trajectory and less wind drift than comparable flat base bullets.

Designed for hunting at long range.

	Caliber & Catalog №	Bullet							Cartridge		Velocity					Energy					Test barrel length	Power Factor Estimated	Points of impact					MRD	Ballistic coefficient
		Number	Type	Weight		Diameter	Sectional Density	Material of jacket	Weight	Length	V_muzzle	V₁₀₀	V₂₀₀	V₃₀₀	V₄₀₀	E_muzzle	E₁₀₀	E₂₀₀	E₃₀₀	E₄₀₀	Test barrel length	Power Factor Estimated	50 y	100 y	200 y	300 y	400 y	Calculation	Calculation
		Number	Type	grs	g	in	lb/in²	Material of jacket	g	in	fps					ft·lb					in	kgr·fps	in					y	G1	G7
22-250 REM.
	SB22250A	1365	SBT	55	3.60	0.224	0.157	N/A	16.5	2.346	3,681	3,243	2,825	2,435	2,077	1,655	1,284	975	724	527	23½	202.5	-0.6	0.0	-1.3	-7.0	-18.7	255.9	0.251	0.117
6,5 × 55 SE
		1730	SBT	140	9.10	0.264	0.287	N/A	24.2	2.992	2,372	2,192	2,020	1,855	1,698	1,749	1,493	1,268	1,070	896	23½	332.1	-0.2	0.0	-5.3	-19.0	-43.0	179.4	0.463	0.234
7 × 57
		1940	SBT	175	11.35	0.284	0.310	N/A	25.0	3.071	2,411	2,260	2,114	1,974	1,838	2,259	1,984	1,736	1,513	1,313	23½	421.9	-0.2	0.0	-4.8	-17.4	-39.0	184.8	0.562	0.282
7 × 57 R
		1940	SBT	175	11.35	0.284	0.310	N/A	25.0	3.071	2,411	2,260	2,114	1,974	1,838	2,259	1,984	1,736	1,513	1,313	23½	421.9	-0.2	0.0	-4.8	-17.4	-39.0	184.8	0.562	0.282
7 × 64
		1940	SBT	175	11.35	0.284	0.310	N/A	25.9	3.307	2,523	2,367	2,217	2,073	1,934	2,473	2,177	1,910	1,670	1,454	23½	441.5	-0.3	0.0	-4.2	-15.5	-34.9	192.5	0.562	0.282
7 × 65 R
		1940	SBT	175	11.35	0.284	0.310	N/A	25.6	3.291	2,592	2,434	2,281	2,135	1,994	2,610	2,301	2,022	1,770	1,544	26¾	453.6	-0.3	0.0	-3.9	-14.4	-32.6	197.9	0.562	0.282
7 mm REM. MAG.
		1940	SBT	175	11.35	0.284	0.310	N/A	30.1	3.287	2,795	2,631	2,471	2,318	2,169	3,036	2,689	2,373	2,087	1,828	24	489.1	-0.4	0.0	-3.0	-11.8	-27.0	213.3	0.562	0.282
308 WIN.
		2160	SBT	180	11.70	0.308	0.271	N/A	26.0	2.799	2,474	2,276	2,087	1,908	1,737	2,445	2,070	1,741	1,455	1,205	23½	445.3	-0.2	0.0	-4.7	-17.5	-39.8	185.9	0.434	0.218
30-06 SPRING.
		2160	SBT	180	11.70	0.308	0.271	N/A	27.4	3.240	2,579	2,376	2,183	1,999	1,824	2,657	2,256	1,904	1,597	1,329	23½	464.2	-0.3	0.0	-4.2	-15.7	-35.9	193.6	0.434	0.218
300 WIN. MAG.
		2165	SBT	200	12.96	0.308	0.301	N/A	33.3	3.339	2,740	2,567	2,401	2,240	2,087	3,332	2,926	2,559	2,229	1,934	23½	548.0	-0.4	0.0	-3.3	-12.6	-28.9	207.8	0.530	0.266
8 × 57 JRS
		2420	SBT	220	14.26	0.323	0.301	N/A	28.6	3.110	2,287	2,130	1,979	1,834	1,693	2,554	2,215	1,912	1,642	1,401	23½	503.1	-0.1	0.0	-5.7	-20.3	-45.2	175.0	0.526	0.263
8 × 57 JS
		2420	SBT	220	14.26	0.323	0.301	N/A	28.6	3.110	2,405	2,243	2,087	1,938	1,794	2,825	2,457	2,128	1,835	1,573	23½	529.1	-0.2	0.0	-4.9	-17.8	-40.0	183.7	0.526	0.263

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