Harmon Killebrew has the best career slugging percentage for the Twins, with a slugging percentage of .514.

Interpreted as:

highest slg with a minimum of 1500 PA by a player in twins history

	NAME	SLG	PA	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Harmon Killebrew H. Killebrew	.514	9,462	2,329	7,835	1,258	2,024	277	24	559	1,540	1,505	47	1,629	18	16	4,026	860	0	75	156	238	.258	.378	.892	1590	569.5	.391	144	480.3
2	Goose Goslin G. Goslin	.502	5,810	1,361	5,140	854	1,659	289	125	127	932	488	42	337	117		2,579	541	140				.323	.386	.888	994	269.7	.404	130	231
3	Roy Sievers R. Sievers	.500	3,574	856	3,080	480	823	133	22	180	574	435	24	411	8	6	1,540	335	2	33	32	78	.267	.359	.859	556	148.9	.377	130	126.6
4	Justin Morneau J. Morneau	.485	5,350	1,278	4,749	669	1,318	289	16	221	860	501	37	839	5	7	2,302	526	0	63	84	121	.278	.347	.832	764	127.5	.354	117	115.3
5	Miguel Sanó M. Sanó	.482	2,859	694	2,502	386	585	123	6	162	418	333	13	1,042	5	3	1,206	291	0	11	10	52	.234	.326	.808	404	60.7	.342	115	54.1
6	Jimmie Hall J. Hall	.481	2,104	573	1,885	282	507	73	16	98	288	191	2	358	23	14	906	187	11	15	18	38	.269	.334	.815	305	82.7	.357	124	59.1
7	Kent Hrbek K. Hrbek	.481	7,137	1,747	6,192	903	1,749	312	18	293	1,086	838	26	798	37	26	2,976	623	15	66	110	165	.282	.367	.848	1101	288.6	.371	126	222.1
8	Shane Mack S. Mack	.479	2,434	633	2,161	351	668	119	24	67	315	200	36	381	71	33	1,036	210	23	14	5	50	.309	.375	.854	390	110.3	.380	132	91.3
9	Don Mincher D. Mincher	.479	1,854	617	1,590	230	388	77	10	92	270	231	7	289	4	7	761	179	14	12	29	38	.244	.340	.819	269	69.3	.357	123	49.5
10	Heinie Manush H. Manush	.478	3,564	792	3,290	576	1,078	215	70	47	491	205	20	131	29		1,574	332	49				.328	.371	.849	576	130.5	.384	119	95.8
11	Eddie Rosario E. Rosario	.478	2,830	697	2,661	400	738	134	22	119	388	133	2	539	39	20	1,273	275	10	24	15	36	.277	.310	.788	369	30.2	.330	106	21.6
12	Byron Buxton B. Buxton	.478	3,111	827	2,823	466	696	165	27	145	395	213	42	897	105	12	1,350	337	14	19	7	16	.247	.307	.785	414	43	.333	112	41.9
13	Kirby Puckett K. Puckett	.477	7,831	1,783	7,244	1,071	2,304	414	57	207	1,085	450	56	965	134	76	3,453	678	23	58	85	188	.318	.360	.837	1182	280.7	.366	123	211.4
14	Tony Oliva T. Oliva	.476	6,879	1,676	6,301	870	1,917	329	48	220	947	448	59	645	86	55	3,002	597	14	57	131	139	.304	.353	.830	1008	281.1	.365	129	222.2
15	John Stone J. Stone	.476	2,334	556	2,066	358	655	122	55	32	351	247	6	133	21		983	209	15				.317	.392	.867	395	99.9	.396	121	69.9
16	Bob Allison B. Allison	.471	5,921	1,541	5,032	811	1,281	216	53	256	796	795	34	1,033	84	50	2,371	525	25	35	30	115	.255	.358	.829	900	258.7	.369	129	196.4
17	Jim Lemon J. Lemon	.470	3,624	915	3,226	427	855	117	34	159	509	337	18	710	13	18	1,517	310	6	37	18	70	.265	.334	.805	505	91.7	.353	114	60.1
18	Corey Koskie C. Koskie	.463	3,257	816	2,788	438	781	180	13	101	437	385	49	647	66	33	1,290	294	3	32	39	58	.280	.373	.836	491	83.3	.362	116	66.2
19	Torii Hunter T. Hunter	.462	5,461	1,373	5,013	739	1,343	281	26	214	792	354	55	975	128	65	2,318	521	2	37	33	148	.268	.321	.783	702	29.9	.335	102	9.6
20	Gary Ward G. Ward	.461	1,681	417	1,543	216	439	80	20	51	219	115	4	260	26	5	712	151	3	16	11	50	.285	.333	.794	229	42	.350	113	25.5
21	David Ortiz D. Ortiz	.461	1,693	455	1,477	215	393	108	3	58	238	186	9	339	4	2	681	169	1	20	13	35	.266	.348	.809	236	24.1	.349	106	12.9
22	Larry Hisle L. Hisle	.457	2,764	662	2,437	369	697	109	23	87	409	251	23	478	92	41	1,113	219	24	29	19	54	.286	.354	.811	398	94.5	.364	127	83.1
23	Jacque Jones J. Jones	.455	3,783	976	3,492	492	974	189	15	132	476	231	28	737	67	40	1,589	336	13	19	25	81	.279	.327	.782	487	16.9	.336	100	-0.2
24	Joe Cronin J. Cronin	.455	4,138	940	3,582	577	1,090	242	72	51	673	466	16	274	56		1,629	365	74				.304	.387	.842	669	144.3	.385	119	111.6
25	Stan Spence S. Spence	.453	3,268	750	2,875	394	852	153	49	66	427	358	14	155	19		1,301	268	21			46	.296	.377	.829	498	148.7	.390	137	136.2