Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

[RH300UM]

Did my testing with the 195's today.
Load that I found for my 7mm/338 improved norma mag. Is 94 gr. 50 bmg pushes at 3150 fps at 4500 feet altitude
1/9 twist 28 inch brux

 

[JARHEAD1371]

Did my testing with the 195's today.
Load that I found for my 7mm/338 improved norma mag. Is 94 gr. 50 bmg pushes at 3150 fps at 4500 feet altitude
1/9 twist 28 inch brux

Is it safe to assume this load is relatively light? This type of wildcat is on my short list for a build to shoot the 195. What is your barrel length and accuracy at 300 yds? The reason I'm asking is I'm planning on a 26" barrel and 300 is my zero distance. Have you tried other powders like Retumbo, or was bmg the most accurate for you? Shooting the 195 at about 3150 with a light load is my goal and using a powder that I can find almost everywhere would be an added bonus. Thanks for any info you care to share.

 

[IdahoCTD]

I'll be about 6-7 weeks out before I can make a chip. I should have my reamer print finalized with JGS tomorrow and 6 to 7 weeks later I'll see my 7-338 Norma Imp reamer with a bore rider throat. Now that's it's hunting season I doubt I'll have time to mess with my 7-300wm and 195's until mid November.

 

[RH300UM]

Is it safe to assume this load is relatively light? This type of wildcat is on my short list for a build to shoot the 195. What is your barrel length and accuracy at 300 yds? The reason I'm asking is I'm planning on a 26" barrel and 300 is my zero distance. Have you tried other powders like Retumbo, or was bmg the most accurate for you? Shooting the 195 at about 3150 with a light load is my goal and using a powder that I can find almost everywhere would be an added bonus. Thanks for any info you care to share.

28 inch barrel with one ragged hole at 100 yards.
I just went from 100 to the 600 yard mark. Then went to 836. And finally 1303. All distances gave great accuracy.
94 grains of 50 bmg is max for this barrel. New one on the way with 8 twist. I tried retumbo, h1000,us 869 and 50 bmg. All gave great accuracy. It the highest velocity was with 50 bmg.
I have always thought this barrel was on the tight side. New barrel is a Broughton with 5C rifling at 27 inches

 

[mrb1982]

The smith I use currently has a 7mm-300 win mag reamer with .220 FB and a .312 neck. Got a couple questions.

Seems this freebore is a little shy for the 195's. Am I going to be leaving some performance on the table if I go with that short of FB?

As far as the neck goes, will I have to do any special prep to my brass or anything. I am not well versed on the neck sizes as much, so I thought it would be best to ask you guys with more experience. My goal is to be able to straight up neck size my 300 win mag brass to 7mm, clean and somewhat simple. Does a .312 neck have any bearing on that?

This reamer was made for 180's obviously. Any input would be great. Thanks.

 

[esshup]

Just remember that annealing is your friend.

 

[mrb1982]

Yeah i plan on annealing also. I just don't want to have to do anything like thinning my necKS if I don't have to.

 

[calinb]

The smith I use currently has a 7mm-300 win mag reamer with .220 FB and a .312 neck. Got a couple questions.

Seems this freebore is a little shy for the 195's. Am I going to be leaving some performance on the table if I go with that short of FB?

I discussed the 195 EOL "vaporware" availability with Dave at PTG a couple of years ago when I ordered my reamers. (Yippee--it's no longer vaporware!) Dave recommended chamber reamer throat dimensions suited to the available bullet offerings at the time (180 gr.) and suggested I buy an additional uni-throater reamer to adjust throats later, if needed:

Premium Uni-Throater Kit - Pacific Tool and Gauge

If you need more freebore, you might consider buying one.

As far as the neck goes, will I have to do any special prep to my brass or anything. I am not well versed on the neck sizes as much, so I thought it would be best to ask you guys with more experience. My goal is to be able to straight up neck size my 300 win mag brass to 7mm, clean and somewhat simple. Does a .312 neck have any bearing on that?

This reamer was made for 180's obviously. Any input would be great. Thanks.

I have no trouble necking my 300 RCM brass down to 7mm (or up to 338 and then fire forming the shoulder) so it seems to me that you should not have a problem. Similarly, I have no trouble necking my 338 RCM brass down to 300. Yes--I do anneal. I got my RCM brass cheap (hence my interest in chambering for it), but that doesn't mean I don't want it to last!

 

[BigSwede]

The smith I use currently has a 7mm-300 win mag reamer with .220 FB and a .312 neck. Got a couple questions.

Seems this freebore is a little shy for the 195's. Am I going to be leaving some performance on the table if I go with that short of FB?

As far as the neck goes, will I have to do any special prep to my brass or anything. I am not well versed on the neck sizes as much, so I thought it would be best to ask you guys with more experience. My goal is to be able to straight up neck size my 300 win mag brass to 7mm, clean and somewhat simple. Does a .312 neck have any bearing on that?

This reamer was made for 180's obviously. Any input would be great. Thanks.

My 7mm-300wm reamer has .188 freebore, I'm seating my 195's in more than I imagined would be "optimal" and well below shoulder neck junction because I wanted magazine length coal. I'm jumping them more than any other vld's I've shot.. other calibers included. I'm still getting 3040-3060 fps 74.5 h-1000 with .002-.003 neck tension on the bullets. And they shoot lights out when I get runout .003 or less in the brass.
-Swede

 

[trappers son]

My 7mm-300wm reamer has .188 freebore, I'm seating my 195's in more than I imagined would be "optimal" and well below shoulder neck junction because I wanted magazine length coal. I'm jumping them more than any other vld's I've shot.. other calibers included. I'm still getting 3040-3060 fps 74.5 h-1000 with .002-.003 neck tension on the bullets. And they shoot lights out when I get runout .003 or less in the brass.
-Swede

how far are you jumping them?

 

[BigSwede]

.140 jump seems to be in my "sweet spot".

 

[mrb1982]

That is encouraging. I could probably get away with .220 FB pretty easily then I guess and be ok I am guessing. I had read that there were a lot if guy using .25-.3 FB for the 195's so I am a hair afraid that it could be a little shallow. My target number is 3000fps with a 28 or 29" barrel.

 

[Edd]

Yeah i plan on annealing also. I just don't want to have to do anything like thinning my necKS if I don't have to.

You are not going to neck 300 Win Mag brass down to 7mm and get them to work in a .312 chamber without turning the necks.

 

[mrb1982]

That is what I was wondering.

What is the standard neck size? For some reason .315 seems familiar