Between the 1930 and 1939 seasons, Jimmie Foxx had the best slugging percentage, with a slugging percentage of .652.

Interpreted as:

best slugging% with a minimum of 1.55 PA per team game by a player in the 30s

	NAME	SLG	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	GIDP	AVG	OBP	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Jimmie Foxx J. Foxx	.652	1,470	5,495	1,244	1,845	316	87	415	1,403	1,015	7	876	65		6,552	3,580	818	35	17	.336	.440	1.091	1555	726.8	.479	166	611.7
2	Babe Ruth B. Ruth	.644	713	2,405	607	797	110	24	198	652	632	8	351	22		3,066	1,549	332	21		.331	.472	1.116	764	375.1	.490	186	363.4
3	Lou Gehrig L. Gehrig	.638	1,397	5,255	1,257	1,802	328	91	347	1,360	1,028	30	439	72		6,339	3,353	766	26	2	.343	.453	1.091	1522	719.6	.481	174	666.9
4	Joe DiMaggio J. DiMaggio	.622	554	2,319	520	791	143	49	137	558	199	15	117	16		2,544	1,443	329	11	11	.341	.397	1.019	539	217.2	.450	149	180.8
5	Hank Greenberg H. Greenberg	.617	882	3,358	698	1,086	262	53	206	851	517	11	556	43		3,917	2,072	521	31	8	.323	.415	1.032	852	365.8	.457	152	291.9
6	Ted Williams T. Williams	.609	149	565	131	185	44	11	31	145	107	2	64	2	1	677	344	86	3	10	.327	.436	1.045	150	66.1	.464	156	53.1
7	Johnny Mize J. Mize	.605	573	2,069	368	716	148	45	99	416	272	14	185	3		2,369	1,251	292	14	9	.346	.425	1.030	518	219.3	.458	173	213.8
8	Rudy York R. York	.590	344	1,173	224	355	61	6	88	295	175	4	179	9		1,357	692	155	5	8	.303	.395	.985	273	103.1	.437	136	71
9	Hal Trosky Sr. H. Trosky Sr.	.563	895	3,533	630	1,120	231	49	180	767	326	10	307	19		3,890	1,989	460	21	6	.317	.376	.939	727	236.4	.418	130	169.1
10	Harry Heilmann H. Heilmann	.561	157	490	82	161	45	6	19	97	64	1	52	2		570	275	70	15		.329	.407	.968	115	35.5	.424	133	30.2
11	Mel Ott M. Ott	.560	1,473	5,341	1,095	1,673	287	54	308	1,135	956	30	474	50		6,388	2,992	649	61	5	.313	.420	.980	1315	508.3	.439	163	512.2
12	Joe Medwick J. Medwick	.552	1,084	4,420	771	1,492	353	81	145	873	241	18	376	28		4,706	2,442	579	27	15	.338	.374	.927	863	276.1	.414	145	261.7
13	Chuck Klein C. Klein	.551	1,344	5,149	955	1,676	323	62	238	979	479	11	395	71		5,689	2,837	623	50	4	.326	.384	.935	1067	347	.417	138	278.5
14	Jeff Heath J. Heath	.545	279	1,035	182	326	66	32	36	197	77	0	132	12		1,115	564	134	3	7	.315	.362	.907	194	54.8	.404	122	36.1
15	Buzz Arlett B. Arlett	.538	121	418	65	131	26	7	18	72	45	5	39	3		469	225	51	1		.313	.387	.925	87	29.1	.417	133	19.7
16	Earl Averill E. Averill	.538	1,445	5,621	1,102	1,786	354	114	218	1,046	705	29	447	57		6,392	3,022	686	37	4	.318	.397	.934	1208	401	.419	132	288.2
17	Bob Johnson B. Johnson	.537	1,023	3,814	728	1,168	217	53	186	750	593	8	478	61		4,436	2,049	456	21	12	.306	.401	.938	843	289.5	.423	133	207.4
18	Babe Herman B. Herman	.533	968	3,606	578	1,157	258	71	122	630	339	7	371	60		3,988	1,923	451	36		.321	.380	.914	726	218.7	.408	140	214.2
19	Hack Wilson H. Wilson	.529	593	2,013	354	597	112	17	107	459	314	2	325	13		2,354	1,064	236	25		.297	.392	.921	440	138	.410	138	126.7
20	Lefty O'Doul L. O'Doul	.527	626	2,200	399	759	119	31	73	364	223	19	87	24		2,460	1,159	223	18		.345	.410	.937	478	164.9	.422	145	147.8
21	Al Simmons A. Simmons	.524	1,305	5,233	930	1,700	292	89	190	1,081	396	21	458	39		5,680	2,740	571	30	13	.325	.375	.898	999	281.7	.402	126	208.5
22	Wally Berger W. Berger	.522	1,328	5,120	806	1,537	297	59	241	893	431	38	685	35		5,616	2,675	597	27	6	.300	.359	.881	946	235.6	.394	136	259.4
23	Bill Dickey B. Dickey	.513	1,213	4,474	722	1,431	247	56	168	937	485	23	187	26		5,016	2,294	471	34	9	.320	.389	.902	897	266.2	.408	131	221.2
24	Bill Terry B. Terry	.510	961	3,789	688	1,332	216	70	82	602	296	6	236	30		4,162	1,934	368	71		.352	.399	.910	766	237.3	.411	142	234.2
25	Charlie Gehringer C. Gehringer	.507	1,434	5,629	1,181	1,865	400	76	146	1,003	766	29	209	101		6,492	2,855	622	68	7	.331	.414	.921	1225	404.3	.419	132	295.1