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Post by powderfinger on Jan 3, 2017 15:45:29 GMT -5
will be shooting the 250 grain XTP w/ the short MMP black sabot. thanks
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Post by GMB54-120 on Jan 3, 2017 16:04:06 GMT -5
Re7 is kinda slow for a 250gr in the 50cal
My old PDF file from Dougs says start at 63gr and upto 69gr.
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Post by Richard on Jan 3, 2017 16:30:44 GMT -5
Sounds about right GMB!
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Post by Deleted on Jan 3, 2017 17:06:27 GMT -5
If you plan to use reloader 7 in a 50 caliber you would do much better with a 300 grain bullet. Tests have shown that you will get increased velocity with a 300 grain bullet and the same exact charges used with a 250 grain
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Post by dennis on Jan 3, 2017 20:25:51 GMT -5
Re7 is kinda slow for a 250gr in the 50cal My old PDF file from Dougs says start at 63gr and upto 69gr. Better have good eye relief and hang on to the rifle or the scope will be in your face with 63gr of powder. I know this from personal experience. Dougs doesn't say if they used a muzzle break either. I'm not afraid of recoil, I just don't like the scope in my face. With 60gr Re7 and 300gr bullet the scope got me 3 in a row, not fun. I'm also not a little guy 6'2" 220lbs. I have never had a fail to fire with 58gr and a fed209a primer. |
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Post by powderfinger on Jan 4, 2017 7:15:47 GMT -5
what powder other than N110 (too hard to find) and 4759 ( discontinued) for the 250?
while we're at what's available, what's the .458 diam 300 grain bullet, that would have the highest BC for use w/ the orange MMP sabot? ( the Barnes 300 semi -spritzer is like the search for the holy grail)....lol
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Post by GMB54-120 on Jan 4, 2017 10:56:08 GMT -5
63gr of Reloder7, MMP Orange or Harvester Black Crushrib and a .458 325gr FTX is a great combination. The BC is not stellar but it aint too bad either. Price is very reasonable too. Velocity will be around 2100fps
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Post by GMB54-120 on Jan 4, 2017 11:01:05 GMT -5
Re7 is kinda slow for a 250gr in the 50cal My old PDF file from Dougs says start at 63gr and upto 69gr. Better have good eye relief and hang on to the rifle or the scope will be in your face with 63gr of powder. I know this from personal experience. Dougs doesn't say if they used a muzzle break either. I'm not afraid of recoil, I just don't like the scope in my face. With 60gr Re7 and 300gr bullet the scope got me 3 in a row, not fun. I'm also not a little guy 6'2" 220lbs. I have never had a fail to fire with 58gr and a fed209a primer. Mine never bit me with 63gr and a 325gr FTX. Scope had about 3.7" of relief and im no giant. FTF is not the main issue with the load. Its pressure starvation. A 250gr bullet and 58gr of reloder7 makes a very low peak pressure. Probably around 25Kpsi or less and that pressure will vary quite a bit based on temps. Those swings get worse when powders are pressure starved. If peak pressure varies so does muzzle velocity. If velocity varies so does accuracy and point of impact. There are only 2 solutions without duplexing, heavier bullet or more powder. Take your choice. |
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Post by aldeerhunter on Jan 4, 2017 11:05:24 GMT -5
Not sure what gun you are using. In my laminate MLII I use 65 grains and a 300 grain Match Hunter bullet. Sub moa at one hundred yards. Recoil is not bad at all.
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Post by GMB54-120 on Jan 4, 2017 11:21:28 GMT -5
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Post by dennis on Jan 4, 2017 11:41:39 GMT -5
I don't know the particulars of their testing and I believe the data to be true but were they shooting from a lead sled? I am only stating my experience when I tried a much lower powder charge. I just use my sml's for hunting and from a climber stand not a shack where it is easier to use heavier rifle or better recoil reducing methods. I also checked this same info that is posted before I ever tried Re7. What I am using works for me where I hunt and I have killed many deer with the 58gr load.
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Post by dennis on Jan 4, 2017 11:44:30 GMT -5
Not sure what gun you are using. In my laminate MLII I use 65 grains and a 300 grain Match Hunter bullet. Sub moa at one hundred yards. Recoil is not bad at all. How much eye relief do you have with your scope setup? I have only 3", I could handle the recoil with 5" no problem. |
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Post by Deleted on Jan 4, 2017 11:59:31 GMT -5
A prerequisite for an sml is at minimum 4 inches of eye relief.
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Post by GMB54-120 on Jan 4, 2017 12:06:29 GMT -5
I don't know the particulars of their testing and I believe the data to be true but were they shooting from a lead sled? I am only stating my experience when I tried a much lower powder charge. I just use my sml's for hunting and from a climber stand not a shack where it is easier to use heavier rifle or better recoil reducing methods. I also checked this same info that is posted before I ever tried Re7. What I am using works for me where I hunt and I have killed many deer with the 58gr load. The particulars are right in the very first post by TGinPA. He and Rick Bibby (may they both rest in peace) have done more MLII load testing than nearly anyone alive today. The rifle is a Savage MLII small shank and OEM breach plug. Using a sled will have no effect on pressure in anyway that im aware of, so it not really relevant to the point im trying to make. You can debate this anyway you like but the fact is, 58gr of Re7 and a 250gr bullet is far from the best choice of available options. If you are blowing sabots with the faster powders and getting scope bite its not the powders fault. You probably got a bad barrel and bought the wrong scope for your needs. |
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Post by aldeerhunter on Jan 4, 2017 17:36:45 GMT -5
Not sure what gun you are using. In my laminate MLII I use 65 grains and a 300 grain Match Hunter bullet. Sub moa at one hundred yards. Recoil is not bad at all. How much eye relief do you have with your scope setup? I have only 3", I could handle the recoil with 5" no problem. I am using a Bushmell Elite 3200 with the firefly reticle. Eye relief is only 3.3 inches. My gun is stock stainless laminate with an accutrigger. I have to keep a hand on the forend to keep the barrel rise at a minimum. However, the recoil is not as bad as a 7 mag or stout 12 gauge load. I started with 60 grains and worked up to 65. Once I achieved three 3 shot groups 3/4 inch and under, I stopped. I don't know that more powder would shoot any better. |
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Post by dennis on Jan 4, 2017 17:47:28 GMT -5
I may bump up the powder a couple grains at a time with 250gr bullets to try things over again. This is not my original barrel, it is a factory take-off I puchased from a member it is in like new cond. I have lapped it to smooth the bore so maybe I can use some of the powders now that were blowing sabots before.
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Post by powderfinger on Jan 5, 2017 10:28:42 GMT -5
Makes sense> i'll try the 325FTX w/ orange MMP sabots. so then same charge range of RL7 as listed above for start load? |
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Post by powderfinger on Jan 5, 2017 14:39:45 GMT -5
just to be sure, w/ the 325 FT, what you recommend as start load w/ RL7?
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Post by GMB54-120 on Jan 5, 2017 23:07:10 GMT -5
Start at 60gr and i wouldn't go over 65gr with a 325gr bullet. If you want more speed than that you probably better off with H4198 instead.
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Post by GMB54-120 on Jan 6, 2017 12:21:18 GMT -5
Since you asked.
I dont care for it BUT.....5744 is a approved powder by Savage. Its a dog in the fps department and almost as dirty as BH209 but its ultra reliable.
Several online sources such as Grafs did have N110 in stock very recently. If you have a local shop that carries some VV powder ask them if they can order N110 for you. It not nearly as hard to get as N120. I dont think importation of N110 ever really had problem like it did with N120.
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