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Reloading Techniques For Reloading


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New to reloading. Need help asap.

 
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  #1  
Old 11-23-2011, 09:17 PM
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New to reloading. Need help asap.

Hello. I've spent a few hours searching and found most of the answers, but still have questions. I have a factory 300 RUM Sendero ll. I just started reloading and I am completely lost on things like, bumping the shoulder, only half neck size, only partial full length resize, etc.... It seems very easy for me to just full length, trim, etc... and of course checking wall thickness, reaming, etc.. But whether or not to full resize or neck really confuses me. I realize its harder on the brass to always full length, but it seems there is a lot less I have to check and worry about. Besides, what is a bag of brass every year or two. No biggy. If I had a Shilion barrel, McMillian stock, trigger, etc.... well, a custom rifle, then I would for sure be using fire formed brass and doing everything I could to gain the most accuracy as possible, but........

......is there "that" big of a difference in a "factory" rifle to go ahead and only neck size and using fire formed cases over using full resized brass? I enjoy shooting out to 7&800 yards, but only on targets. I'm not near good enough or confident enough to take a shot at an animal at that range, but am out to 500 yards. If I were to shoot at extreme long range, then I would be doing everything possible with my brass to gain the most accuracy as possible.

I have lots of fired brass and would like to use it, but I'm unsure on what to look for in reloading it beside trimming it. I don't know what I'm reallying looking at when looking at the shoulder, the neck wall thickness, etc. How many reloads can I load before worrying about the shoulder moving forward, ejection broblems, wall thickness? I would like to use the fired brass, but have no real knowledge on it. I've preped all the brass as far as weighing it all, deburring, primer pocket uniformidy, etc... If there is not that big of a difference in formed brass and full lenghth, then I'll full resize. If there is a thread somewhere on here and someone can point me in the right direction, thanks.

Also, my RUM has a very generous throat. It would be a single shot if I wanted it .010 off the lands. So, another question, to get the most accuracy out of bullet depth, how far under over all magazine length do you seat your bullets to where there are no problems with magazine feed issues?

Any help would be great. I need to load tonight to sight in tomorrow to finish off the last 3 days of season.
Thanks for the help.
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Old 11-23-2011, 10:18 PM
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Re: New to reloading. Need help asap.

I'll answer 2 of your questions. First, in my opinion, I can't shoot well enough to see a difference between a full length size and a neck size. After I fire the brass through my gun the first time, I neck size, but only for the reason of prolonging the case life, not for accuracy reasons. I have a 270 win mag that I only full length size because I'm too cheap to buy a neck sizing die. Second, go as long as your magazine will let you, my bullets got to a point where they simply wouldn't feed from the magazine, that is when you know your bullets are too long. One thing I did notice when they got to be too long is on a FULL magazine, the first round wouldn't feed, but the other 4 would, so I just went from 4+1 to 3+1 in my magazine and it worked fine. But if I load to just off lands, I have to single feed them.
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Old 11-24-2011, 12:07 AM
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Re: New to reloading. Need help asap.

Quote:
Originally Posted by Jeremybj View Post
I'll answer 2 of your questions. First, in my opinion, I can't shoot well enough to see a difference between a full length size and a neck size. After I fire the brass through my gun the first time, I neck size, but only for the reason of prolonging the case life, not for accuracy reasons. I have a 270 win mag that I only full length size because I'm too cheap to buy a neck sizing die. Second, go as long as your magazine will let you, my bullets got to a point where they simply wouldn't feed from the magazine, that is when you know your bullets are too long. One thing I did notice when they got to be too long is on a FULL magazine, the first round wouldn't feed, but the other 4 would, so I just went from 4+1 to 3+1 in my magazine and it worked fine. But if I load to just off lands, I have to single feed them.
So I'm not crazy. I actually did that same thing. I loaded to where they would feed from the mag no problem. As soon as I loaded several into the mag, they would not feed. One at a time, no problem. As close to the mag as possible, they are sooo far out from the lans. I'll probably just keep everything to the book, full length, and call it good. I've ran out of time. Thanks for the help.
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Old 11-24-2011, 02:38 PM
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Re: New to reloading. Need help asap.

I give thanks on Thanksgiving to anyone willing to help me out .....in a hurry. Just went to range again.... Dope chart says to be dead on at 275, I should be .5 inches high at 50 yards. I am. 3 rounds, same hole. Cleaned gun and removed all copper. Went to 100 yards. Chart says 2.5 inches at 100. 3 rounds pretty much same hole. All touching. Cleaned gun. 200 yards, suppose to be 2.7 inches high. I am ALL over the place. High, low, right, left??? Cleaned gun, tried again. Same thing. Like a 6 inch group. Cleaned gun, went to 300 yards. Suppose to be 1.5 inches low, was 5 inches low, 9 inches low, 5 inches left, 7 inches low. Just all over the place. Loaded to exact book specs for 200 grain Accubond, 94gr Retumbo, 2.840 brass Rem brass, Fed 215 primers, full resized. 3.600 OAL. I have never built loads before, so I'm so lost. Is this a scope issue? Rings or base? Load issue? The scope is the top Sightron Slll 6-24x50 with Seekins rings and base. 300 RUM has a Kirby break on it, so I'm not sure if the scope can't handle the forces or what. I would have thought that if I could have 3 rounds touching at 100 yards, then the gun would obviously be shooting well out to longer ranges. Is the bullet not stabilized yet? Is this what its like when loads are in need of tweaking? I would have assumed that at 100 yards and that kind of group, it was a good load. I'm shooting off a lead sled. Does that effect accuracy? I am 100% sure it is NOT me. Recoil/noise does not bother me even though there is zero with Kirby's break and the lead sled. That thing is rock solid on target. Please help. Does this sound like a load issue or a scope/rings/mount issue? Thanks.
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Old 11-24-2011, 10:59 PM
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Re: New to reloading. Need help asap.

It does sound like mounts/rings.
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Old 11-24-2011, 11:05 PM
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Re: New to reloading. Need help asap.

Quote:
Originally Posted by Nitroman View Post
It does sound like mounts/rings.
I re torqued everything and all felt great. Didn't appear anything was loose or that there was any movement. Is it common to develope a load that shoots great out to 100 yards, then falls apart out furthur on? I realize the scope I have on thier is not a night force, but there were a lot of recommendations on the high end $1000 sightrons from this site. I know there are bad eggs now and again, but are they just not great at holding up with the breaks? Its brand new.
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  #7  
Old 11-25-2011, 10:10 AM
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Re: New to reloading. Need help asap.

My dad and I have only been reloading for a few years now but one thing we've seen time and time again is that we need all the data we can get. And sometimes we need to go back and test for that data again. The more data you have the better you can interpret what the paper, the chrono, and the brass are telling you.

Whether the scope is holding zero will be easy to check. Just go back to 100 yards and see if you get a good group.

I haven't had this issue myself but have heard of similar problems being solved by adjusting for parallax.

I've also heard of some guns doing this with some bullets and not with others. If the hardware checks out then try a different bullet. And how does the gun do at 200 yards with factory loads?

Are you shooting from the same type of rest at each range?
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