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RL7
Jan 25, 2009 19:06:46 GMT -5
Post by 161 on Jan 25, 2009 19:06:46 GMT -5
I've been shooting 300 gr. Remington JHP with BCR and 2015 powder. The powder choice was just because I had some 2015 on hand. I've been told RL7 would be a better choice for 300 gr. and 2015 is better for 325 gr and heavier. My question is RL7 is listed as a slightly slower burn rate than 2015. Aren't slower powders for heavier bullets?
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Deleted
Deleted Member
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RL7
Jan 25, 2009 20:03:16 GMT -5
Post by Deleted on Jan 25, 2009 20:03:16 GMT -5
RL 7 is a good powder with 300 grainers, 65-69 gr......Bill
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cgg
Spike
Posts: 48
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RL7
Jan 25, 2009 21:18:52 GMT -5
Post by cgg on Jan 25, 2009 21:18:52 GMT -5
I am glad you asked about RL7 because I have just started to work with it myself. I have not tried 2015, but have been shooting RL7 this winter for the first time. I have a two year old SS/camo synthetic 10MLII that has been very picky about loads and, to be honest a PIA. I almost said screw it and sold it a couple times, but RL7 has started to turn me around. The rifle is finally shooting good groups consistently My barrel is pretty tight and it has been shooting 300 grn/.452 XTP's with the smooth Harvester SB sabot's the best. I started conservatively with 55 grns of RL7 and have worked up to 62 grains. It started to shoot well with 57 grns and really likes 60 to 62. Next week I'll try up to 64. I don't know about burn rates etc., but RL7 has been very good in my rifle with 300 grn bullets. I want to try N120 (can't find it locally ) and just got some H4198 today. Does anyone have a velocity for 300 grn bullet and 60 to 65 grns of RL7? Good luck with your load development and have fun. CG
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RL7
Jan 25, 2009 21:19:52 GMT -5
Post by dougedwards on Jan 25, 2009 21:19:52 GMT -5
I have really never completely understood those powder burn rate charts. First of all....they aren't consistent with each other. Secondly I just don't by what method that the charts determine the burn rate of the powder. Is this a rate based on burning in a confined space......if so how confined? Is it based on powder burning in free space? If so......how could that really relate to how they burn when pressure is allowed to build up causing the powder to burn faster? I can tell you that I don't know.
I do know that R-7 is a very good powder for 300 grain bullets. Some have used it for 250 gr projectiles but I think I would use a booster if I went that route. Someone else will have to provide you with an explaination of why a supposedly faster burning powder is more suitable for heavier bullets.
Doug
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Deleted
Deleted Member
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RL7
Jan 25, 2009 21:39:58 GMT -5
Post by Deleted on Jan 25, 2009 21:39:58 GMT -5
I am glad you asked about RL7 because I have just started to work with it myself. I have not tried 2015, but have been shooting RL7 this winter for the first time. I have a two year old SS/camo synthetic 10MLII that has been very picky about loads and, to be honest a PIA. I almost said screw it and sold it a couple times, but RL7 has started to turn me around. The rifle is finally shooting good groups consistently My barrel is pretty tight and it has been shooting 300 grn/.452 XTP's with the smooth Harvester SB sabot's the best. I started conservatively with 55 grns of RL7 and have worked up to 62 grains. It started to shoot well with 57 grns and really likes 60 to 62. Next week I'll try up to 64. I don't know about burn rates etc., but RL7 has been very good in my rifle with 300 grn bullets. I want to try N120 (can't find it locally ) and just got some H4198 today. Does anyone have a velocity for 300 grn bullet and 60 to 65 grns of RL7? Good luck with your load development and have fun. CG 161 I think I'd take Hillbills advice....65-69gn. I've tried these amounts and found them to shoot well. 67gn is what I've found to be most accurate. If I remember right 65gn got you to about 2275-2300 fps. 67gn gets about 2350-2375fps. I never shot below 65gn so I can't help you there. I shot H4198 this year but I'm going to experiment more with RL7. Zen
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RL7
Jan 25, 2009 22:11:36 GMT -5
Post by DBinNY on Jan 25, 2009 22:11:36 GMT -5
I've shot 63-65 gr or R7 with 300 gr bullets (XTPs, Rems and BOs). 63 gr has been the most accurate for me at low to mid 2200s fps. I haven't tried the 66-70 gr area yet but need to.
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RL7
Jan 25, 2009 23:30:27 GMT -5
Post by nitro1947 on Jan 25, 2009 23:30:27 GMT -5
RL-7 is also great in the 45 pacnor ..ive shot up almost a pound this winter going to range to try some 180 gr xtps tomorrow in blue sabots and 62-64 grain...i love the stuff
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RL7
Jan 25, 2009 23:38:53 GMT -5
Post by Dave W on Jan 25, 2009 23:38:53 GMT -5
I've shot 63-65 gr or R7 with 300 gr bullets (XTPs, Rems and BOs). 63 gr has been the most accurate for me at low to mid 2200s fps. I haven't tried the 66-70 gr area yet but need to. Same here, 65gr in the low 2200's shot the best with the 300Rem.
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RL7
Jan 26, 2009 5:09:13 GMT -5
Post by rbinar on Jan 26, 2009 5:09:13 GMT -5
I've been shooting 300 gr. Remington JHP with BCR and 2015 powder. The powder choice was just because I had some 2015 on hand. I've been told RL7 would be a better choice for 300 gr. and 2015 is better for 325 gr and heavier. My question is RL7 is listed as a slightly slower burn rate than 2015. Aren't slower powders for heavier bullets? The problem with some powder burn charts is sometimes they're wrong. There is no way 2015 is faster burning in a big bore than RL7. You'll need considerably less #7 to reach a given speed compared to 2015
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RL7
Jan 26, 2009 19:42:12 GMT -5
Post by thelefthand on Jan 26, 2009 19:42:12 GMT -5
I shoot RL7 with 300gr bullets as well. I tried from 62 to 75 grains. My gun likes 64 to 67 grains, and 69 to 73 grains. My hunting load is 71 gr, but it does NOT shoot well in warm weather, and it will beat the snot out of you at the bench if you are going to shoot it much.
Mark
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RL7
Jan 26, 2009 23:10:24 GMT -5
Post by Flatland Hunter on Jan 26, 2009 23:10:24 GMT -5
I shoot 70gn at around 2300 fps... hunting accurate! Shot a nice buck at a lasered 185 yds. Zero was 180 yds shot right where I was aiming.
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