243 Weatherby 307 and 88gr Hammer Hunter bullets

[Lapuatom]

Only have about 80 rounds down the tube at this point. I have some Hammer hunters I want to try. Looking for insight/experiences. The rifle is a model 307 243win 7.5tw 22"bbl

 

[Lapuatom]

Only have about 80 rounds down the tube at this point. I have some Hammer hunters I want to try. Looking for insight/experiences. The rifle is a model 307 243win 7.5tw 22"bbl

Looking mainly for reloading starting points and or data in general.

 

[CA48]

I ran them with 37.5gr of h4350 in my rifle. It's a mild load.

 

[Lapuatom]

I ran them with 37.5gr of h4350 in my rifle. It's a mild load.

Any idea about the velocity? I'm thinking 3300or so should end up being ballpark near max.

 

[CA48]

37.5gr was 2900fps out of a 16" Bbl so 3100- 3200sounds about right for a 22"

 

[K.E.C.]

Hammer Time.
Hammer Forum. Com

 

[unclecroc]

I've shot 4 deer this year with the 88 hammer hunter out of a 6mm creedmoor and it does a dandy job on them from 30 yards to 460 yards. H4350 would be my powder of choice. I'm getting 3380 fps with 44gr of h4350 in a 28" barrel. Start low and work up with caution.
Load data is available on the hammer bullets website, hammertime forum and this forum as well.

 

[newmexkid]

Also, you can call them up and they will give you load data.

 

[Horse1]

Not exactly what you're asking for but probably close enough for starting load extrapolation.

I have shot 85Gn Barnes TSX @ 3170-3180 from 22" bbls by Kimber, Winchester, Rem, and Savage. 45gn of Ramshot Hunter powder. It's 1gn under book max but it shoots well in everything.

Ramshot Hunter is just a tad slower than H4350 and has given me better velocity. It's a spherical powder that enters very well through a powder measure.

I would think you could start out @ 42-43gn and work up to your goal of 3200fps in 1/2gn increments.

 

[Jasbo]

Savage M10 22" 9-1/2 Twist 75gn Hammer Hunter Tipped 41.5gn Varget MV 3599fps. At 400 yds 2499fps 1040 lb-ft KE. 1/4 Turn Lee Factory Crimp Die. Accurate and stable.

 

[Jasbo]

Savage M10 22" 9-1/2 Twist 75gn Hammer Hunter Tipped 41.5gn Varget MV 3599fps. At 400 yds 2499fps 1040 lb-ft KE. 1/4 Turn Lee Factory Crimp Die. Accurate and stable.

Sorry omitted cartridge is .243 Win.

 

[MOA or bust]

FWIW, In my factory REM 700 in .243 Win with 20 inch barrel, I'm shooting Barnes TSX 85 gr with 47g RL19 at 3050 with good accuracy.

 

[HRM Johnny]

Please let us know about your results when you have a chance to try it.

 

[Lapuatom]

Please let us know about your results when you have a chance to try it.

I'll be heading to the range when weather permits and will share results from multiple ladder tests.