I shot my 14" SS MGM 30-30AI barrel this past Saturday for the first time. I made fire form loads with some IMR 4320 that I have had for ages just to use it up 30.5 grs. I used some pulled 147 military FMJ bullets and new WW cases with Wolf LR primer. If I and my buddy did our part it would put 5 under 1" at 100 yards. From all the information that I can find IMR 4198 seems to be THE powder and 125 Nosler Ballistic Tips seems to be THE deer size game bullet. Work up to 34.0 grs IMR 4198 with the 125 gr bullet and you should get around 2650+ fps and amazing accuracy. At least that is what I have been told my many people. Another suggested load is to work up to 36.0 grs IMR 3031 with 150 gr bullets.