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new custom cant get to shoot

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Unread 02-14-2011, 09:13 AM
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Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 8,644
Re: new custom cant get to shoot

I have seen a primer change cut group size in half or better. But I would only change one component at a time.

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Unread 02-14-2011, 10:17 AM
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Join Date: Oct 2010
Posts: 66
Re: new custom cant get to shoot

has anyone had better/ best results with one certain primer or is it just a guessing game?
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Unread 02-14-2011, 10:47 AM
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Join Date: Apr 2010
Location: Allen, TX
Posts: 2,608
Re: new custom cant get to shoot

I always use match primers because I don't want to compromise quality/consistency to save a few pennies.

As for Large Rifle Vs Magnum primers, there are some general rules of thumb.

Most say you should use Magnum primers when...
- using ball powders
- large powder charge (>60g)
- cold weather

Even across manufacturers of Large Rifle or Magnum primers, some are known to be "hotter" than others. So, they can have notable impact on your accuracy depending on what your rifle likes.

There are so many variables you can change with load workup that I usually stick with one primer Fed GM215M for my magnum rifles and CCI BR2 for my other rifles. Fed 210M is fine. But, I got a large batch of CCI's and have stuck with them.

If you search this forum and google, you'll find lots of information.

Each rifle/load is unique. So, there are exceptions.

-- richard
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Unread 02-14-2011, 11:45 AM
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Join Date: Dec 2007
Location: sebastopol, ca.
Posts: 418
Re: new custom cant get to shoot

Primers make a huge difference in the short fat cases.
I tried the magnum primers and they didn't work very well in my 7WSM. I had problems with the Remington 9 1/2 primers also. Went to the CCI BR2 and everything seemed to settle down. I was getting a lot of fliers with the hot primers.
I would expect that since you are using RE17 you will also see variations at different temperatures. I had a problem with my 300 win mag shooting RE22, when it was hot weather it was all over the place.
You should be able to get the Bergers to shoot good with a pretty big jump so get your load straightened out best you can and the work on the seating depth. I would bet you can find a length that fits in your mag. You have better odds jumping them than most other bullets.
Keep us posted with your progress.
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Unread 02-14-2011, 12:39 PM
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Join Date: Aug 2008
Location: east central fl. /n.c. pa.
Posts: 843
Re: new custom cant get to shoot

i think m.e. from alaska nailed it.
as i see it, you dont seem willing to accept what might be the cause. was a friend involved in the build?
you gave the smith a short action and it should have been chambered accordingly. if he had problems with that he should have told you up front. he should also have advised you on action truing etc.
lots of things could be causing your problem or contributing to it.
id be taking that gun to somebody i was sure of for an opinion.
at the very least one possibility could be ruled out.
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Unread 02-14-2011, 01:27 PM
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Join Date: Apr 2010
Location: Allen, TX
Posts: 2,608
Re: new custom cant get to shoot

What's done is done.

The good news is still the fact that you have a single shot load that shoots accurately.

Do the mag well modification that Jim See recommended. If you aren't sure how to get it done, I'm certain he can do it for you.

You're basically out the extra shipping cost. But, you would've had to pay for materials and installation anyway. So, while you could've gone with a long action or a short throat, it sounds like you'll end up with the best option using the new mag well regardless of how you got there.

And, don't overlook the scope base alignment issue as pointed out by some.

Simply changing bullets and/or playing with seating depths may get you where you need to be. But, at the expense of barrel life and cost of components. So, the mag well is probably a safer bet at this point if you truly have a load that shoots one ragged hole and if it wasn't just a one group fluke.

The load workup need not be complete guesswork either. Apparently the Berger will shoot fine in this rifle when seated near the lands.

But, I would also strongly consider the primer/powder recommendations that others have suggested. ..particularly as pertains to H4350 or H4831sc as they are considered to be consistent performers.

Then, start with a methodical load workup and do not cut corners.

Let us know how it turns out.

-- richard
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Unread 02-14-2011, 01:53 PM
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Join Date: Oct 2010
Posts: 66
Re: new custom cant get to shoot

well the rl 17 was a load i loaded earlier this winter. i have read how the rl powders are sensitive and this is why i switche dto h 1000 and have been using this since. like i said i did have 2 4 shot groups at about .75 moa and that was by far the best. this was with 69 grains. i started from 67 and went up to 70 in one grain increments. i am thinking i should try a couple loads at maybe 68.7 and 69.3 and see what happens. then if that doesnt have a whole of effect i will steat the bullets a bit deeper and see what happens. i switched to the Hodgdon extremr powders for the consistance reasons. looks like ill have to buy another box of bergers and some H4831
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