Rcbs uniflow question.

[Benchguy57]

So I own both the charge master 1500 and uniflow.
My question is when I'm loading my hunting rounds and short on time I like to use my uniflow as the charge master takes too long for each round when you're loading 75-100 rounds.
The problem I'm wanting answers to is the uniflow will throw a charge sometimes +\- .3 grains off. In the real world is this something I should concern myself with??
I bought the uniflow a few months ago and not too much experience with it, but I am very consistent with my handle movements.
The round is for a .270 winchester and I'm shooting a very light load. I weigh every 5th charge, I use the baffle that goes in the hopper tube for more consistent throws and try and keep the hopper tube filled with powder.
Thanks guys for your help.
Regards
George.


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[kylec]

When you say "funnel piece" are you talking about the metal baffle? If not, get one, it will help. Also, I wasn't happy with the accuracy of my throws, so I took the powder tube off of mine and polished/smoothed out the bottom part using my cordless drill, some sand paper and some polishing compound. I then cleaned it with mineral spirits and ran a lb of powder through it. It was MUCH better.

 

[Benchguy57]

Thanks. Yes the baffle is what I meant. You polished the drop portion where the plastic tip goes? Or the bottom of the unit where the powder sits??



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[Boxcar]

Agree with Kyle get the baffle if you don't have it. I don't throw many rifle charges with mine, but it's plenty consistant with my pistol charges usually +/-.1 grain with the baffle inside.

Saying your chargemaster isn't fast enough, have you reprogrammed it and done the straw mod? If not I suggest doing it. My next charge is generally ready by the time I'm done seating the bullet on the previous round.

 

[Benchguy57]

Agree with Kyle get the baffle if you don't have it. I don't throw many rifle charges with mine, but it's plenty consistant with my pistol charges usually +/-.1 grain with the baffle inside.

Saying your chargemaster isn't fast enough, have you reprogrammed it and done the straw mod? If not I suggest doing it. My next charge is generally ready by the time I'm done seating the bullet on the previous round.

What's the straw method??
Thanks for the info.


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[Boxcar]

Here's a nice vid John McQuay did explaining everything.

http://m.youtube.com/watch?v=p-DRJCL0D3A

 

[kylec]

Thanks. Yes the baffle is what I meant. You polished the drop portion where the plastic tip goes? Or the bottom of the unit where the powder sits??

The bottom of the unit where the powder sits. I polished as far down in there as I could reach. Here's a pretty good thread on it with pics:

Optimizing the RCBS Uniflow For Stick Powders

 

[4Quangs]

You might see up to +-1/2 inch change in elevation at 100 yards with your +-0.3 grain variance.

 

[kylec]

Thanks. Yes the baffle is what I meant. You polished the drop portion where the plastic tip goes? Or the bottom of the unit where the powder sits??



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The bottom where the powder sits. I tried to post a link to a thread on another forum that described the process and had pics. I must've done something wrong. Anyways, if you google "polishing a RCBS Uniflow, you'll find the process and pics.

 

[Benchguy57]

Thanks for the help.


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