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The Basics, Starting Out
Infatuated, but need suggestions...
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<blockquote data-quote="ss8541" data-source="post: 51641" data-attributes="member: 104"><p>The Sako Trgs is not a bad way to go in 338 Lapua, but they have a short throat. My roommate just built a 338 Lapua improved with a 28" sporter weight Walther barrel. We did some load development with the stock TRGS first. He only shoots the 225 grain Barns XLC though. I helped him do load development on the factor barrel and the custom. We found that the throat was pretty short in the factory barrel. The X bullets like to be seated deaper then conventional bullets, and they ended up down around the lower shoulder area. I think this throat would be way to short for the 300 MK. If you had it re throated it would work ok. Another problem is that I think the factory barrel was only about 25" long.The Norma brass he uses is very stronge and of great quality in comparison to the Rem brass. You would be very surprised if you looked at how thick the web area is on these cases. Bell labs did a good job when they re-enginered the cases from the original 416. The ultra seems to be about 2 or so grains behind in case capacity, and light years behind in brass quality, but the rifles tend to have a longer throat from what I have seen. I think velocitys will equal out in factor guns. I would give the Ultra the nod because you could buy one in the Sendero, and brass would be much cheaper. This may not be the type of rifle you are looking for, but you want it to do some things that a sporter just isn't ment to do. The Sendero will be more consistent then a sporter BDL if they are both stock guns. I haven't played with the Accumark in 338-378 so I don't know how short the throat is in them, but with Weatherby you can assume it is very long. You would have better brass then the ultra, and more case capacity. I would guess that you could get at least 100 fps more from the bigger case. You will be looking at spending a few hundred more for the rifle and about twice as much for brass though. The accumark does come with a break. I guess in a nut shell it would come down to either the 338-378 in the Accumark or the 338 Ultra Sendero if I was going to try a factory rifle. You could also save some money and try to do a midrange custom gun though. I think the money would be well spent for what you would like to do with the rifle. Another though is to spend about 1800 to 2000 on a H&S precision rile. It isn't a full custom but it would be a happy medium if you wanted to use the Lapua. A 28 to 30" barrel would really help you get that velocity though. Every inch helps when you are trying to get out to a mile. Having a Sendero rebarreled would be a good compromise. These are just a few ideas for you. I hope this helps.</p><p></p><p>Vince</p></blockquote><p></p>
[QUOTE="ss8541, post: 51641, member: 104"] The Sako Trgs is not a bad way to go in 338 Lapua, but they have a short throat. My roommate just built a 338 Lapua improved with a 28" sporter weight Walther barrel. We did some load development with the stock TRGS first. He only shoots the 225 grain Barns XLC though. I helped him do load development on the factor barrel and the custom. We found that the throat was pretty short in the factory barrel. The X bullets like to be seated deaper then conventional bullets, and they ended up down around the lower shoulder area. I think this throat would be way to short for the 300 MK. If you had it re throated it would work ok. Another problem is that I think the factory barrel was only about 25" long.The Norma brass he uses is very stronge and of great quality in comparison to the Rem brass. You would be very surprised if you looked at how thick the web area is on these cases. Bell labs did a good job when they re-enginered the cases from the original 416. The ultra seems to be about 2 or so grains behind in case capacity, and light years behind in brass quality, but the rifles tend to have a longer throat from what I have seen. I think velocitys will equal out in factor guns. I would give the Ultra the nod because you could buy one in the Sendero, and brass would be much cheaper. This may not be the type of rifle you are looking for, but you want it to do some things that a sporter just isn't ment to do. The Sendero will be more consistent then a sporter BDL if they are both stock guns. I haven't played with the Accumark in 338-378 so I don't know how short the throat is in them, but with Weatherby you can assume it is very long. You would have better brass then the ultra, and more case capacity. I would guess that you could get at least 100 fps more from the bigger case. You will be looking at spending a few hundred more for the rifle and about twice as much for brass though. The accumark does come with a break. I guess in a nut shell it would come down to either the 338-378 in the Accumark or the 338 Ultra Sendero if I was going to try a factory rifle. You could also save some money and try to do a midrange custom gun though. I think the money would be well spent for what you would like to do with the rifle. Another though is to spend about 1800 to 2000 on a H&S precision rile. It isn't a full custom but it would be a happy medium if you wanted to use the Lapua. A 28 to 30" barrel would really help you get that velocity though. Every inch helps when you are trying to get out to a mile. Having a Sendero rebarreled would be a good compromise. These are just a few ideas for you. I hope this helps. Vince [/QUOTE]
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