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A little 7mm practical help

 
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  #1  
Old 09-26-2012, 11:31 PM
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Join Date: Aug 2009
Location: British Columbia Canada
Posts: 165
A little 7mm practical help

Hey guys, I'm thinking of ordering a 7mm practical reamer. I have a custom sako 75 in 7 rem mag that has a mag length of 3.728 inch. Id like to shoot the 180 bergers but would like to know if I order a reamer for those bergers to fit my mag length if I will still be on the bearing surface in the case necks when I seat them to overall length of about 3.7 inches and not into the ogive.

I know there's a few guys on here that shoot the practical and I was hoping someone might be able to seat a 180 Berger in a fire formed case to a overall length of 3.7 and let me know how it looks. Otherwise I'll have to look at single loading but sometimes it can be a pain to eject a loaded round.

Thanks
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  #2  
Old 09-27-2012, 01:28 PM
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Location: Auckland, New Zealand
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Re: A little 7mm practical help

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Originally Posted by .284 View Post
Hey guys, I'm thinking of ordering a 7mm practical reamer. I have a custom sako 75 in 7 rem mag that has a mag length of 3.728 inch. Id like to shoot the 180 bergers but would like to know if I order a reamer for those bergers to fit my mag length if I will still be on the bearing surface in the case necks when I seat them to overall length of about 3.7 inches and not into the ogive.

I know there's a few guys on here that shoot the practical and I was hoping someone might be able to seat a 180 Berger in a fire formed case to a overall length of 3.7 and let me know how it looks. Otherwise I'll have to look at single loading but sometimes it can be a pain to eject a loaded round.

Thanks
I'd suggest that you speak to Nathan Foster. He's incredibly switched on a build a fair number of 7mm Practicals.

Have a look at his website. He's very helpful. This page may help.

The 7mm Practical. A Practical Magnum.

Hope this helps.

Cheers
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  #3  
Old 09-27-2012, 01:55 PM
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Location: The cold part of Montana
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Re: A little 7mm practical help

After looking it up I have to ask. Why? what do you hope to get in real world gains?
Not being a smart ass mind you, just seems to me that there isn't enough gain in powder capacity to make it with worth the trouble. Just to have something nobody else has? which to me is reason enough,I've thought about it though, I've often mulled 7mm RM AI but never enough to look into it.
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Keep in mind the animals we shoot for food and display are not bullet proof. Contrary to popular belief, they bleed and die just like they did a hundred years ago. Being competent with a given rifle is far more important than impressive ballistics and poor shootability. High velocity misses never put a steak in the freezer.

Joe
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Old 09-27-2012, 02:03 PM
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Re: A little 7mm practical help

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Originally Posted by Joe King View Post
After looking it up I have to ask. Why? what do you hope to get in real world gains?
I would love to have one ... and plan to build one in the next year or two ... It's a great long range caliber... You almost get the power of a 7mm RUM without having to replace your barrel every 400-500 rounds, and without the freebore issues of the RUM.

Why wouldn't you want one?

Just my 2c.
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Old 09-27-2012, 02:17 PM
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Re: A little 7mm practical help

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Originally Posted by proload View Post
I would love to have one ... and plan to build one in the next year or two ... It's a great long range caliber... You almost get the power of a 7mm RUM without having to replace your barrel every 400-500 rounds, and without the freebore issues of the RUM.

Why wouldn't you want one?

Just my 2c.
not much info on it, so I was thinkin of it in relation to the 300win vs 30-338, pretty close in performance
__________________
Keep in mind the animals we shoot for food and display are not bullet proof. Contrary to popular belief, they bleed and die just like they did a hundred years ago. Being competent with a given rifle is far more important than impressive ballistics and poor shootability. High velocity misses never put a steak in the freezer.

Joe
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  #6  
Old 09-27-2012, 10:53 PM
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Join Date: Aug 2009
Location: British Columbia Canada
Posts: 165
Re: A little 7mm practical help

I have an email off to Nathan as well just thought I'd look here for some info as well.

As to why would I want one - well I just can't see why not. I,ll be almost through my 7 mag barrel by the time I got a reamer built and thought it would be a great time to fireform some brass and check the round out.

If it were all about saving money and not having any fun we'd all shoot a 30-30 or 30-06. I like the idea of getting 180 Bergers north of 3000 and maybe even 3100. The reamer is cheap and if it worked I think it would be real interesting to try the 195 Berger out in. Assuming the 195 is a success.
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  #7  
Old 09-28-2012, 09:36 AM
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Join Date: Feb 2007
Location: Townsend, Montana.
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Re: A little 7mm practical help

I have built several of the 7mm-300 win versions of this off my own reamer. I feel this is a very efficent sized case for a 7mm and you will get very good velocity without suffering the increased throat erosion that comes with larger cases. The accuracy of these chamberings in Hart 9 twist barrels will impress even the worst of the naysayers with a 180 Berger. The first one I did is approaching 1000 rounds now and still put 4 out of 5 in a skoal can at 700 yards a while back. H-1000 is my choice of powder. Another huge plus for this chambering is brass selection. I have some Lapua stashed but we also get great results from RWS brass which is some really tough stuff and it is always available unlike some of the other larger 7mm brass. Fewer cases have won more matches over the years than a 300 win case. I happen to believe that was not just by chance. Here is how I see it. If you are a 7mm fan, the 7mm Practical / 7mm-300 is a chambering that is very easy to get a love affair going with.

Jeff
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