6.5x47 lineage
- Thread starter Ardent
- Start date
Thanks for the info, and I guess I missed the point on my little brackets reference, was trying to say I was just curious about geometry and used 'construction' in a round about way to mean excluding details such as primer pocket size and flash hole etc. 
6x47 Swiss Match looks like a good setup, and one could form cases from the new small primer 6.5x47 lapua cases it would seem with a simple pass through a sizing die
6x47 Swiss Match looks like a good setup, and one could form cases from the new small primer 6.5x47 lapua cases it would seem with a simple pass through a sizing die What was that i heard you say a 270x47 or 30x47 possibly a 22x47 i am sure someone will get around to testing all combinations once the brass is available.
Should be interesting
Should be interesting
jb1000br said:
Have you been able to get an overall loaded length for the production 6.5x47 Lapua?
The pic that accompanied the announcement looked to be longer than had been speculated, perhaps long enough to keep the bottom of the bearing surface of the 123 gr Scenar above the neck/body junction.
Thanks!
NBRSA/IBS Hunter Rifle competitors have been using wild-cat versions of this case type/capacity since almost day one; they were very popular until the mid-1980's. The GOOD news now, is that there will be precious little case forming required: simply neck -up for the .30x47s and neck-down for the 6mm; 25s etc. Of course, about the time the various 6mmX44-47mm variants disappeared from the equipment lists,around 1988), we were still trying to shoot 68 Gr. bullets, as opposed to, for the roughly 45-49 Gr. capacity cases, the better balanced 85-100 Gr. range of bullet weights.
Two attributes killed off the various 6x47 type cases: 1) difficult case forming,moving shoulder back to the point that the original shoulder material wound up in the middle of the newly formed case neck) and the lack of [GOOD] FL re-size dies; 2) the difficulty of maintaining a COMPETITIVE TUNE with the relatively large capacity,for a 6mm and 68 Gr. bullets) combined with a much narrower powder selection. While delivering the required 45.5 Gr. H2O capacity, the 6/250 had the well deserved reputation of getting "sticky" just about when the sweet spot was found - case life was brief. Sadly, in THAT era, FL sizing was regarded as TABOO!
Knowing now,that FL resizing is a GOOD thing), what we had abandoned then,in BR circles, FL resizing of cases was thought to degrade precision), the 6/250, teamed with a properly dimensioned chamber and FL re-size die, should work extremely well! For a short time, the 6HLS,essentially, the 6MM Rem. reamer head-spaced on a .22/250 GO gauge) enjoyed more success than did the 6/250 . . . but it too withered on the "difficult" case vine.
Back to the point, once we have brass which requires NO movement of the shoulder, it becomes much easier for most people to make GOOD brass. So, most variants of the new LAPUA 47MM brass should prove excellent for many applications - it will certainly be better than using the now popular .308 LAPUA and/or other longer parent brass to form these types of cases! R.G.
Two attributes killed off the various 6x47 type cases: 1) difficult case forming,moving shoulder back to the point that the original shoulder material wound up in the middle of the newly formed case neck) and the lack of [GOOD] FL re-size dies; 2) the difficulty of maintaining a COMPETITIVE TUNE with the relatively large capacity,for a 6mm and 68 Gr. bullets) combined with a much narrower powder selection. While delivering the required 45.5 Gr. H2O capacity, the 6/250 had the well deserved reputation of getting "sticky" just about when the sweet spot was found - case life was brief. Sadly, in THAT era, FL sizing was regarded as TABOO!
Knowing now,that FL resizing is a GOOD thing), what we had abandoned then,in BR circles, FL resizing of cases was thought to degrade precision), the 6/250, teamed with a properly dimensioned chamber and FL re-size die, should work extremely well! For a short time, the 6HLS,essentially, the 6MM Rem. reamer head-spaced on a .22/250 GO gauge) enjoyed more success than did the 6/250 . . . but it too withered on the "difficult" case vine. Back to the point, once we have brass which requires NO movement of the shoulder, it becomes much easier for most people to make GOOD brass. So, most variants of the new LAPUA 47MM brass should prove excellent for many applications - it will certainly be better than using the now popular .308 LAPUA and/or other longer parent brass to form these types of cases!
R.G.AlNyhus
Silver $$ Contributor
R.G.: Maybe the 6.5X47 Lapua will finally be the 'big BR case' that we've been looking for? It seems that it would make a dandy min. capacity HBR case,30X44-ish with 45.5 H2O) with just a slight shoulder push back.
Sure would be less work than what some tortured souls are going through by going the other way with a BR case, right?
Man...those guy are weird! :crazy: -Al
Sure would be less work than what some tortured souls are going through by going the other way with a BR case, right?
Man...those guy are weird! :crazy: -Al
Upgrades & Donations
This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.