Ruger No. 1 7mm08 throat length
- Thread starter LolaPP
- Start date
- Location
- Edmonton Area Ab, Candle Lake Sk
Your going to have to measure it.
In my experience #1 made in the past 20 years do not have excessively long throats. My .275 Rigby and my 7x57 RSI do not have long throats, nor did my KIA and RSI IN 6.5×55.
Apparently in the past 7x57 had exceptionally long throats.
In my experience #1 made in the past 20 years do not have excessively long throats. My .275 Rigby and my 7x57 RSI do not have long throats, nor did my KIA and RSI IN 6.5×55.
Apparently in the past 7x57 had exceptionally long throats.
- Location
- Western Manitoba
LolaPP - you probably want to know what the throat length is in your rifle - what is in other rifles may or may not be helpful to know. That dimension is going to change as the round count progresses in most barrels. At least two, maybe three, ways that I know of to establish a rough dimension of the throat length within a rifle - is commonly found on Internet or in loading manuals - two ways are without buying anything else, than what you probably already have, if you reload. Bench rest shooters talk about "chasing the lands" and that can only be done by repeatedly measuring where those leades are, almost every batch loaded for that rifle? PM to me if you have trouble to find or to do.
- Location
- Edmonton Area Ab, Candle Lake Sk
If your rifle is a newer version I'd try bullets in around the 140gr range if you already have some. My 7x57 likes Hornady 139 and 154 gr.
- Location
- Western Manitoba
It likely is no direct help to OP, but about 2004 or so I bought a Ruger 1A in 7x57. I worked up loads with 140, 150 and 160 grain Partitions. I liked the groups I got with the 150 grains at the book max for RL-19 powder - 2,800 fps on my Shooting Chrony - plus or minus about 15 or 20 fps for the several times that I measured it over the years. Was the only load that I ever used in that rifle, and took many Saskatchewan deer with it.
A friend of my son's inherited a Schultz and Larsen rifle chambered in 7x61 Sharpe and Hart - took us some fussing to make brass for that one from 7mm Rem Mag brass. I had read that Phil Sharpe designed that one around IMR4350 powder and 160 grain 7mm bullets. The last run that I know of made by NORMA used 154 grain bullets - so that is what we used - IMR4350 powder and Hornady 154 Spire Point. The young fellow took a moose that fall with a single shot with that load. Seems to have been "good enough". I never ever did check the velocity of that 7x61 on the chronograph.
A friend of my son's inherited a Schultz and Larsen rifle chambered in 7x61 Sharpe and Hart - took us some fussing to make brass for that one from 7mm Rem Mag brass. I had read that Phil Sharpe designed that one around IMR4350 powder and 160 grain 7mm bullets. The last run that I know of made by NORMA used 154 grain bullets - so that is what we used - IMR4350 powder and Hornady 154 Spire Point. The young fellow took a moose that fall with a single shot with that load. Seems to have been "good enough". I never ever did check the velocity of that 7x61 on the chronograph.
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Yeah, no, roger. I'm just generally asking if they're chambered long or short, ahead of being able to actually measure it. If the answer was "yeah, they're chambered like chucking a hotdog down a hallway" I'd lean ahead a bit and order some <160 grainers to play around with.
- Location
- Western Manitoba
Should be two pictures - to illustrate that weight, bullet length and contact point with leades are not really consistent to each other. I do not have either 139 Hornady on hand, nor anything of the lighter weights in 7mm:
left to right is Hornady 154 Interlock, Hornady 154 Interbond, Nosler Partition 160, Nosler Partition 150 and Nosler Partition 140
Left to right - Hornady 175 Round Nose, Hornady 154 Spire Point, Hornady 154 Interbond
left to right is Hornady 154 Interlock, Hornady 154 Interbond, Nosler Partition 160, Nosler Partition 150 and Nosler Partition 140
Left to right - Hornady 175 Round Nose, Hornady 154 Spire Point, Hornady 154 Interbond
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My experience so far is pretty much yes, but small sample size. My 22" .30-06 pushes 165's to 2920fps, factory loads push 165's to 2800 out of 24" barrels. With those results I plan on trying 180's to see if I can get an easy 2800 fps.
My .270 is a ways off, but the bullet is much different (Berger Classic) than the published load so I likely need to seat it deeper to get a similar result.
