Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

[chuckhammer]

Are these pills exclusive to Bob and EOL or will they be available from other vendors?

 

[barefooter56]

Are these pills exclusive to Bob and EOL or will they be available from other vendors?

chuckhammer,
They will be available through other vendors.

 

[esshup]

If I have time Thursday after they arrive I'll post pics with them in comparison to some other 7mm bullets I have.

 

[IDelkhunter]

I have 200 coming for a new custom 7mmSTW. 26" Proof Research 8.5 twist on Rem 700 action. I have plenty of H1000, Retumbo and RL33 on hand. Has Berger put out any load data specific to this bullet yet?

Thanks,

Marcus

 

[chuckhammer]

Can someone share the exact increase in shank length (bearing surface length) of this bullet vs. a 180 Hybrid? Sounds like it's around .045.

 

[Broz]

Can someone share the exact increase in shank length (bearing surface length) of this bullet vs. a 180 Hybrid? Sounds like it's around .025.

See page 67 post 464 in this thread. I got more than .025"

Jeff

 

[chuckhammer]

I edited it to say .045 which is what I meant. .025 corresponds to the intrusion below the neck for my wildcat and current throat, assuming it is in fact .045 longer in the shank.

 

[chuckhammer]

See page 67 post 464 in this thread. I got more than .025"

Jeff

Yep, looks like about .080 more shank length for the 195. That will put me about .060 below the neck while touching the lands, which is not desirable. Guess I could have Kiff make me a throat-only reamer.

Even though the comparator checks bore diameter (.276 rather than .284) the delta is all I care about here and that number will be accurate as long as the boat tail angle and ogive taper between the two bullets are close.

 

[Broz]

Yep, looks like about .080 more shank length for the 195. That will put me about .060 below the neck while touching the lands, which is not desirable.

That is not a terrible place to be is it? Where would you find it perfect?

Jeff

 

[Edd]

Those measurements in post #464 are not very close to the numbers on the Berger spec sheet.

 

[Broz]

Those measurements in post #464 are not very close to the numbers on the Berger spec sheet.

I am sure Berger has a more accurate way to measure them than I do with my two Hornaday comparators with #28 bushings. As Chuckhammer stated the comparator used uses a bore dia of .276 rather than .284.

I sampled 6 of each of the 500 I have in hand. I only posted those numbers so people with similar tools could get an idea of how the 195's differ than the 180 Hybrid.

Jeff

 

[chuckhammer]

That is not a terrible place to be is it? Where would you find it perfect?

Jeff

Per Kiff's recommendations, I'd like for the rear of the shank to be at-or-above the bottom of the neck. In your experience, how important is it to maintain this relationship, in terms of accuracy? .060 is about 20% of the shank diameter so in my mind it's past the level of picking nits. Maybe not?

BTW - The wildcat in question is an improved 7/300 Win Mag I call the 7mm Valkyrie. .496 body diameter where it meets the 37 deg shoulder. Once fired WW Super brass shows a capacity of 93 gr H20 to the case mouth.

 

[Broz]

I don't think I qualify as an expert here, but with the relatively short nech of the 300 win brass I think as long as you have some below the neck shoulder junction it is good to go. On that case I do like 100% of the neck being used to hold the bullet with hunting ammo I may abuse a little in a back pack. I don't think that .080" below is terrible because we should have enough case volume using H-1000 in the 7-300. But will agree .020" or .030" would be better when touching as we may need to seat back off the lands a ways. So I guess I see your point, and a throating reamer would be nice to get it perfect.

Just for my curiosity, what is the throat length of your 7-300 reamer? I will look mine up too. But I know Kiff missed on it and it is too long. It only leaves .215" of bearing surface in the neck with a 180 VLD touching, quite a bit less with a 180 Hybrid. The good news is the 180 VLD's have shot awesome with this reamer seated -.050" off the lands.

Jeff

PS, my last reamer is from JGS and is spot on and cut like a dream. Very impressed with this company their quality, customer service, answering the phone and follow up. Just a WYI.

Per Kiff's recommendations, I'd like for the rear of the shank to be at-or-above the bottom of the neck. In your experience, how important is it to maintain this relationship, in terms of accuracy? .060 is about 20% of the shank diameter so in my mind it's past the level of picking nits. Maybe not?

BTW - The wildcat in question is an improved 7/300 Win Mag I call the 7mm Valkyrie. .496 body diameter where it meets the 37 deg shoulder. Once fired WW Super brass shows a capacity of 93 gr H20 to the case mouth.

 

[chuckhammer]

Yep, it would be .080 below when seated for a .020 jump. My reamer print shows a .198 throat. The neck on my 7mm Valkyrie is short at around .240, though the reamer print shows about .264 in chamber length available for the neck. The forming process uses up neck length to expand the body diameter and fill out the steeper shoulder. Guess I could start with trimmed 7STW brass to gain back some neck length vs. the current 300WM parent.

I'll have to look at JGS when it's time. Dave Kiff spent about 15 minutes on the phone with me when I was designing this wildcat about two years. I found that conversation very insightful as he patiently answered all my questions with many examples. I could tell he enjoys his profession. Figured that was someone with whom I could do business long term, ya know? Guess I should mic my reamer to see exactly how it turned out.