Let's talk about 2 mile cartridges

[royinidaho]

I disagree, I will take every yard I can gain before going to holding at the bottom of the reticle or on an alternate target up the mountain, when we start shooting and holding of the consistency is much harder, the more rail or higher we crank an adjustable rail the hard it gets to maintain consistency behind the optic, start shaving of serious amounts of MOA starts helping IMO.

I'm gonna give this thought a go.

I have a 40 MOA cant on the rail and the Leupold TS-29 retical and intend to use the reticle to its full extent. I had the MK-4 converted from to that reticle before the TS-32 was available.

Note that all of this is for extending the range at a fixed target. Not a hunting situation.

In a hunting situation I agree with you totally.

Have some heavy 375s projectiles with a published obscene high bc to give a go.

So far the Hammer 395 version two, as I call them, are doing the trick to 1125.

Initial testing show a darn close published G7 and around .25 MOA consistency at 1125 and pure devastation type terminal performance.

I'm gonna kill me a rock at a fur-piece away.

And to think my "big girl" is only 5 years old and now is a lil' kid on the block.

 

[Swamplord]

Not to worry about brass ...... The suppliers only stock what they can sell based on the cartridges history of sales, small quantities available, yes ... but that is simply due to the "dangerous game" cartridge status, those don't sell fast or are needed in large quantities , several of the suppliers all stated to me that I can order as many pieces as I want and they will get them coming ...... I have accumulated several hundred cases without any problems and can order 1000 pcs if the need arises ...
but parent cases are not necessary any longer .......

The 375 Mercenary has sparked a lot of attention !

we have met the minimum requirements for manufacturing brand new factory formed, headstamped 375 Mercenary brass and it is all spoken for !!! but we are accepting other shooters to join in on the buy, 100 pc minimum with no maximum ... email me for details to get in on the buy as we are going to production in Feb. 2017 ...

no reworking of parent brass, no fireforming just load and shoot , reamers are available from JGS through me and will be available from Manson and PT&G after the holidays, Dies are being made as we speak in 1 1/4"X12 as a standard size that can be used in the RCBS Supreme Rock Chucker press and other similar presses and 1 1/2"X12 for the BMG presses like the RCBS Ammomaster 2
test rifle is completed, it's built on the Stiller/Ashbury Precision action with a 33" Rock Creek 7 twist barrel and a 36" barrel coming, Have 5000 Fed 215 Mag primers, 8 jugs of all the slowest powders, Sierra, Cutting Edge, Chinchaga and other bullets for the testing and data accumulation phase starting after this Holiday weekend !

The 375 Mercenary cartridge has more than .010" of case taper per inch of body length and will extract effortlessly at max pressure levels, one of the key issues with the 375 VM 2 and earlier versions of the Snipe Tacs was not enough case taper and the cases were hard to extract with max loads, necessitating the need to reduce loads and thus losing velocity needed to take full advantage of the large powder capacity .... Nothing worse than a cartridge case siezed up on the competition line or in the field on a hunt, especially if the game hunted has a tendency to fight back

for info on brass, reamers and dies send email to ..... [email protected]

 

[THEIS]

Hello

So Mitchs' website says the 375 Lethal Magnum is best suited to 350gr projectiles over the heavier 400+ grainers due to capacity and burn rates, etc.

So being the 350gr .375CEB MTH has G7 of .415 and the 275gr .338CEB MTH has G7 of .411...would it not make more sense of "leap forward" to work on pushing the 275gr .338 projectiles at about 3600fps MV??

Just run the numbers in ballistic program(s)..
At 3500 yards the 350gr at 3400fps MV drops 52.3 Mils and 6mph full value wind deflects 3.5 mils.
At 3500 yards the 275gr at 3600fps MV drops 46.3 Mils and 6mph full value wind deflects 3.3 mils

Swamplord....How is that 338 Merc coming along lightbulb

THEIS

 

[hubel458]

That is for the CEB minimum freebore design and everybody is getting them,

they have gone bonkers over CEBs, and folks at CEB answers the phones

.AND Whether 375 Lethal or 375 HE or the Merc mentioned above , because to much of

the bullet base is down in where powder should be, Pressure problems, But Mitch didn't win with

the CEBs, and I'm not recommending them to get top speed, needed for the two mile.

As long as most 2 mile guys using bore riders, we are testing them, with them out in

the bore, adding powder, and operating with same or less peak pressures.

About 8-10% less pressures with same powder load or extra powder and 5%

more speed. And I mic every case. When case grows after few hot loads, and the

pockets have been staying tight, put it on my special case lathe, bring back to

specs, fire some more. I section an ocassinal case to check for thinning.Ed..

 

[hubel458]

Mitch and Bergers experimental 405 gr figures a G7 of . about .560,

so if you don't have 400gr with G7 of .500 at 3200 or better

you're losing ground. An ultra young guy, using that, beat guys

that have been shooting long range for years. 40 min less elevation

and 2 seconds less time of flight is a difference, Will they do real good

next year, good chance, but never know for sure, I may end up having

egg on my face for all the bragging.. Ed

 

[Swamplord]

The 416 Mercenary is happening and several individuals have contacted me about a 338 Mercenary,
the ease of necking up or down the factory formed 375 Merc brass will simplify making brass, the 375 Merc dies can be used to load both with the correct bushings,

All cool but is 192 gr of case h20 capacity really needed for 338 caliber bullets ? My 338 Slayer design slightly exceeds 338 Snipe Tac capacity in a much shorter and a bit fatter case that will function in 3.850" detachable magazines and can be built on the same actions .... all in progess at the moment

 

[ELR Researcher]

Ed

At least be fair about it, a person can get ahold of Bruce Bertram - Bertram brass and get the 375 VM brass in the USA. I would say that if one was looking for a rifle of this category I would get ahold of Swamplord or Mitch and runwhat they have to offer due to Viers not being as active in his shop anymore.

We all know the 375 Snipetac is a improved version of a 375 cheytac. Below would be the comparison of the 375VM2 and the Snipetac as well as a 338LM.

http://www.longrangehunting.com/for...ets-talk-about-2-mile-cartridges-img_1529.jpg

It always bugs me that folks doing comparisons always seem to change MORE THAN what needs to be changed. My first assumption when I see such posts - favoritism. Here we have two cases and apparently the same projectiles (the two examples on the left). BUT the projectiles are not seated to the same depth, thus making the leftmost cartridge look "more" impressive. IMHO.

Osoh - please seat the projectiles to the same depth and repost. If they are not the same projectile, please also fix that. Thanks.

 

[THEIS]

Will they do real good next year, good chance, but never know for sure, I may end up having egg on my face for all the bragging.. Ed

Hello,

I am sure they will do fine but within the next couple years with the KO2M getting more popular and more teams wanting to compete it will need to have the dates reevaluated and changed to accommodate more of the International Shooting Teams.
Such as the FinnAccuracy Team as they will never be able to make the K02M during its' current dates because it coincides with the FinnSniper comp that the FinnAccuracy Team are committed to organizing, running and such.
Such as the Skiritai Legacy Shooting Team as their Italian long range championship typically coincides with the current KO2M dates.
Such as Lobaev Arms Teams once embargo restrictions are lifted from Russia so they can get licenses to bring their firearms over for the KO2M.

And the K02M will need to "operate" the comp under their own association or have the FCSA setup with BATFE and US Dept of State in regards to sending official invites to other International countries teams that need official invite in order to even apply for their countries license to temporarily bring their firearms into the USA for the K02M.

THEIS

 

[Deleted member 71114]

http://www.longrangehunting.com/for...ets-talk-about-2-mile-cartridges-img_1529.jpg

It always bugs me that folks doing comparisons always seem to change MORE THAN what needs to be changed. My first assumption when I see such posts - favoritism. Here we have two cases and apparently the same projectiles (the two examples on the left). BUT the projectiles are not seated to the same depth, thus making the leftmost cartridge look "more" impressive. IMHO.

Osoh - please seat the projectiles to the same depth and repost. If they are not the same projectile, please also fix that. Thanks.

So...... why would I want to seat the 375 VM2 farther from the lands then what the rifle prefers just to compare it to where we have to seat the bullet it the 375 Snipetac. Nothing here was to make one look more impressive then the other. Just a picture comparing the size of the brass. Nothing fake here I shouldn't have to display something that is not the real deal.

What's the favoritism BS, It bugs the hell out of me that we should have to seat a bullet or use a certain bullet to meet your needs when we we're showing the comparison in the brass and you're not loading or firing the two rifles.

 

[ELR Researcher]

Hello,

I am sure they will do fine but within the next couple years with the KO2M getting more popular and more teams wanting to compete it will need to have the dates reevaluated and changed to accommodate more of the International Shooting Teams.
Such as the FinnAccuracy Team as they will never be able to make the K02M during its' current dates because it coincides with the FinnSniper comp that the FinnAccuracy Team are committed to organizing, running and such.
Such as the Skiritai Legacy Shooting Team as their Italian long range championship typically coincides with the current KO2M dates.
Such as Lobaev Arms Teams once embargo restrictions are lifted from Russia so they can get licenses to bring their firearms over for the KO2M.

And the K02M will need to "operate" the comp under their own association or have the FCSA setup with BATFE and US Dept of State in regards to sending official invites to other International countries teams that need official invite in order to even apply for their countries license to temporarily bring their firearms into the USA for the K02M.

THEIS

Hm...from what you say, the Finns (club) schedule conflicts with the Italian (club) schedule and visa versa. The Russians have opted themselves out. Why should FCSA or the Ko2M organizers be concerned - at all - about the Finn and Italian (club) schedules? I notice you started with LRH on 12/10/16 but I can't tell where you are from - "Profile" only yields posting stats. Are you from Finland?

Frankly, I look at your posts and wonder why all the "can't get there from here" talk. People are trying to get there...and (topic of this thread) better cartridge designs will (IMO) vastly help make that ("there") happen. If you want to talk cartridges, stick around. If you want to start a "can't get there from here" thread, go for it. Thanks.

 

[ELR Researcher]

So...... why would I want to seat the 375 VM2 farther from the lands then what the rifle prefers just to compare it to where we have to seat the bullet it the 375 Snipetac. Nothing here was to make one look more impressive then the other. Just a picture comparing the size of the brass. Nothing fake here I shouldn't have to display something that is not the real deal.

What's the favoritism BS, It bugs the hell out of me that we should have to seat a bullet or use a certain bullet to meet your needs when we we're showing the comparison in the brass and you're not loading or firing the two rifles.

If you are ONLY comparing cases, JUST show the cases. Simple as that.

 

[longrangebo]

This Thies guy has me confused , don't know what he wants is it just trolling?

 

[Swamplord]

Wow , what a stupid reply, I have a 338-408 and shoot the 300 gr bullets at 3250 Ed is saying he gets 3300 with the 350gr. That is like huge! I am thinking about one and talked to my smith about it. He is very excited! I mean it holds 40 or 50 more grains of powder. Than again maybe your not realy into long range?

Just wondering how you measured the case capacity and came up with 40-50 gr more powder BS , did you lean on the scale ?

the 375 Chey Tac is around 160-162 gr case h20 and 585 HE based cartridges are 190 to 193 gr max,
so roughly 30-32 gr or so more in h20 and that's it .......

so if you toss in the 10-20 gr of extra powder , where ya gonna seat the bullet ?

 

[trueblue]

Swamplord....How is that 338 Merc coming along lightbulb

THEIS

I am interested in this as well.
Looks like the most you will get on the Lapua bolt face.
Interested minds want to know more about the 338 Mercenary