Could 6mm rem compete with the 6mm SLR barrel life

[Shawnba67]

I got to thinking (warning) I really
Like everything I've read on the 6slr. But before I shell out the cash I was wondering. The 6mm Rem already has a long neck and room for plenty of slow/cooler burning powder. Is it at all possible that it might come close to the barrel life of the SLR with slightly better velocity?

 

[savagedasher]

I got to thinking (warning) I really
Like everything I've read on the 6slr. But before I shell out the cash I was wondering. The 6mm Rem already has a long neck and room for plenty of slow/cooler burning powder. Is it at all possible that it might come close to the barrel life of the SLR with slightly better velocity?

A 6 mm I think is over bore . Larry

 

[stacy]

IT DEPENDS ON HOW YOU SHOOT IT IF YOU RUN IT HOT YES ITS JUST LIKE A RACE ENGINE SHOOT IT FAST AND LET IT COOL IT LAST JUST AS LONG WITH ALL THE NEW POWDER IT AMAZING WHAT YOU CAN DO

 

[Rtheurer]

I got to thinking (warning) I really
Like everything I've read on the 6slr. But before I shell out the cash I was wondering. The 6mm Rem already has a long neck and room for plenty of slow/cooler burning powder. Is it at all possible that it might come close to the barrel life of the SLR with slightly better velocity?

No Reason it wont be about the same all the way around in Velocity and in Barrel life if you use the powders that are allowing the 6CompMatch and 6SLR to do it.
H1000, N160, N165.

Russel.

 

[357Mag]

Shawn -

Howdy !

The main idea is to keep the powder combustion " turbulence point " within the case neck, an idea championed by former Savage arms engineer
Robert Greenleaf. His " 6BG " wildcat uses a .300Savage " Go Gauge ". It has a 30* shoulder angle to help address barrel life concerns.

What I did was: have my riflesmith' run a 6mm Remington reamer in " short " for a nominal .466" base diam, to make my " DEEP 6 " wildcat.
Deep 6 has 51.2gr H2O case capacity, compared to things like .243Win, 6SLR, and 6mm Remington; which are in the 54-55gr H2O capacity range;
I believe. DEEP 6 has more case capacity than 6 X 47L and 6XC, which I think run around 49gr H2O.

Deep6 cases are formed by running 7 X 64 Brenneke brass up-into a stock 6.5 X 55 Swedish FL die, that has its internal removed to make the die open-topped. Cases emerge from the form die @ .22" calibre, and can be neck turned and inside neck reamed as needed.... to form either a .224" cal wildcat, DEEP 6; a .25" calibre variant; or of course a 6.5mm version. As specifically regards "DEEP 6" ...... No custom reamers, No custom dies are required to form, load/re-load the cases.

Instead of using a fire-formed 30 or 35* shoulder angle, DEEP 6 features the same long VLD-friendly neck the 6mm Remington has.
It is a valid 1,000yd-capable varmint/target cartridge, when using the appropriate bullet(s).

In the pic, " DEEP 6 " is in the middle.... between the " 6.5 Kiwi " wildcat on the left; and my
" .22-35 Remington " wildcat on the right. I beleive DEEP 6 shows a 95 VLD seated.


With regards,
357Mag

 

[Shawnba67]

I had heard the name deep 6 but your description helps me understand a lot. I like the way you wildcat. I always have to add fiscal responsibility to my wants and dreAms Fine work thank you for sharing it

 

[357Mag]

Shawnba67 -

You are
welcome !


With regards,
357Mag

 

[dkhunt14]

357Mag is right. The TP point has a lot to do with barrel life. It is why a 243 with less capacity will not last as long as a 6mm with more capacity. Other factors besides capacity are rate of fire and powder used. Look up TP Point or Turbulence point and read about it. Matt

 

[highmaster82]

6HLS?

 

[Iowa Fox]

Good question. The big drawback to the 6mm Rem is brass availability currently as I see it and I do have two 6mm rifles. Maybe this brass thing will change for the better but I doubt it. Even the 7x57 the parent is about impossible to find. 243 brass thank goodness has been one of the easier ones to come by during this brass dry spell. I've been thinking hard about a SLR myself just because of the brass and I hate fire forming anymore. The Dasher and BRX are a couple I wouldn't mind trying but I'm not crazy about fire forming. If you travel any distance to shoot match's you need a lot of ammo. I don't like loading at night, its a good way to get into a pickle loading when your tired and fatigued.

 

[Tim Singleton]

Shawn -

Howdy !

The main idea is to keep the powder combustion " turbulence point " within the case neck, an idea championed by former Savage arms engineer
Robert Greenleaf. His " 6BG " wildcat uses a .300Savage " Go Gauge ". It has a 30* shoulder angle to help address barrel life concerns.

What I did was: have my riflesmith' run a 6mm Remington reamer in " short " for a nominal .466" base diam, to make my " DEEP 6 " wildcat.
Deep 6 has 51.2gr H2O case capacity, compared to things like .243Win, 6SLR, and 6mm Remington; which are in the 54-55gr H2O capacity range;
I believe. DEEP 6 has more case capacity than 6 X 47L and 6XC, which I think run around 49gr H2O.

Deep6 cases are formed by running 7 X 64 Brenneke brass up-into a stock 6.5 X 55 Swedish FL die, that has its internal removed to make the die open-topped. Cases emerge from the form die @ .22" calibre, and can be neck turned and inside neck reamed as needed.... to form either a .224" cal wildcat, DEEP 6; a .25" calibre variant; or of course a 6.5mm version. As specifically regards "DEEP 6" ...... No custom reamers, No custom dies are required to form, load/re-load the cases.

Instead of using a fire-formed 30 or 35* shoulder angle, DEEP 6 features the same long VLD-friendly neck the 6mm Remington has.
It is a valid 1,000yd-capable varmint/target cartridge, when using the appropriate bullet(s).

In the pic, " DEEP 6 " is in the middle.... between the " 6.5 Kiwi " wildcat on the left; and my
" .22-35 Remington " wildcat on the right. I beleive DEEP 6 shows a 95 VLD seated.


With regards,
357Mag

Interesting cartridge. Could you post a link to more info on it?
Did a search and couldn't come up with anything.

 

[Kurz]

6HLS?

I worked with the 6mm HLS and the 6mm International 20 or more years ago when I couldn't stay away from wildcats in any form.

The HLS is a cartridge case with the 6mm Rem. neck length and case length of 2.00" overall. It is mildly improved in case taper. This is as opposed to the International which is the .250 Savage case with the shoulder pushed back to the longer length but staying with the 1.912" case length. My notes specify that the HLS capacity was 48gr. of H2O while the International was 44 grains of H2O.

Regards.

 

[Kurz]

The Dasher and BRX are a couple I wouldn't mind trying but I'm not crazy about fire forming. If you travel any distance to shoot match's you need a lot of ammo. I don't like loading at night, its a good way to get into a pickle loading when your tired and fatigued.

The simple answer is to use the newer 6mm Norma Dasher brass available now from the factory so you don't have to fireform at all. I still shoot all of the variations so I'm in the habit of fireforming except I do it all at matches instead of as a separate step. I may not win but I'm practicing wind reading and shooting so I still benefit.

If you don't like loading at night between matches then pre-load all the ammunition you need before the match. There really isn't another choice.

As to the 6mm Remington, I shoot a variation named the 6mm Crusader developed by GA Precision. It retains the original neck length while improving the case body and the shoulder to 32 degrees. Member 'kombayotch' has written about this cartridge already. There is also a ton of material still at the Snipershide website.

I happen to like the 6mm Rem. case and always have so I usually have lots of brass on hand. I don't waste barrel life with fireforming as a separate step. I load the standard cartridge and go after prairie dogs, wood chucks or coyotes. I'll even shoot at matches when they are timely.

Controlling throat erosion is simple these days with the excellent selection of cooler burning powders which are available currently. The 32 degree shoulder moves the 'TP' back so the the plasma impinges on the neck of the case instead of into the throat. There is still plenty of velocity to shoot great, flat trajectories with the new hybrid VLD bullets and the AMAXs. The AMAXs double up in spades when shooting prairie dogs or wood chucks at the longer yardages.

Regards.

 

[357Mag]

Timsingleton -

Please check your PM's.


With regards,
357Mag