7mm-08 finding case oal and the lands

[4cyl2v8]

I have been trying to work up a few loads for a Remington SPS varmint in 7mm-08 that I have in the stable. I am using once fired brass from this rifle and Nosler accubond 160 gr. pills. The Nosler book I am using lists the COAL of this round to be 2.80 inches. When I make a dummy up to find the lands in this rifle I come up with 3.338(dummy with the hornady LnL 7mm comparator) -1.006 (length of the comparator) for 2.331 inch length to the o-give. COAL for the round would be 2.917 (plus or minus) inches tip to base.

My question is this. Does it seem out of the ordinary to anyone that the rounds in this rifle need to be 0.117 inches longer than the specs from the Nosler book? A tenth of an inch doesn't seem like much (when dealing in feet), but I just want to be sure this isn't out of line. If i made the rounds to book length then there would be 0.117 inches of jump before they hit the lands? If i used .015 jump I would still have to seat the bullets a tenth of an inch long. Something in my mind said get a second opinion when my brain wrapped itself around the numbers.

I understand that all bullets and tips are different and all figures should be taken with a grain of sand but it seemed like a bit much. Are remington's known for long throats? The rifle has less than 500 rounds through it and 90% of them were factory loads.

Any advise or comments would be appreciated.

 

[H2OBUG]

I have had the same issue with both of my newer factory barrel remingtons. I just load the bullets to the longer OAL roughly .010 off the lands and only load 2 shells in the gun one in the chamber and one in the top of the mag. I have the same issue with my sons A bolt browning--it holds 2 shells

 

[4cyl2v8]

I guess I was just surprised by the amount of jump that this rifle required. Is anyone else getting something close to this with a factory remington barreled action? I would have figured 0.08-0.06 but 0.117? seemed like alot to me. I looked around and could not find what others had before they started seating close to the lands. I will have to load 2 more dummies and make sure that they feed and fit in the magazine.

ETA: This is the first time I am attempting this so I have no baseline to compare to. Anyone have before and after jump numbers for their similar rifles?

 

[steve4102]

Nosler doesn't actually list an OAL or a "recommended" OAL. The case drawing at the beginning of the data is SAAMI specs. The 2.80 listed in these specs is for Ammo manufacturers, the handloader is free to adjust OAl to fit his or her needs.

The Nosler "recommended" OAL can be found on page 43 of Nosler #6. If you do not have #6 you can find it here.

http://www.thefirearmsforum.com/showthread.php?t=97328

 

[PepeLp]

2.800" is the maximum cartridge length that will fit in the magazine box. I think Remington and other manufacturers use a long throat on 7mms because of the old 175 gr. roundnose bullets. I have a Remington in 7-08 and I can't get close to the lands with a 162gr AMAX or 120gr VMax, but they both shoot well.

 

[jaygorski]

In my 700 708 I can easily reach the lands with 150NBTs and MKs, The Noslers are .010" off the lands with a 2.850" oal, if I remember correctly the 162 AMAX has an OAL of about 2.925' when its very close to the lands. I would consider my rifle to have an ideal throat, my bro in laws 700 Mountain has a very short throat compared to mine.

 

[Hunter2571]

My weatherby vanguard S2 Sporter is the same way a real accuracy destroyer. Not everyone wants to use super heavy bullets. A 140 grain will kill anything for woodchuck to bear in North America. Anyhow my Hornady Sst 139 gr bullet touches the land at about 2.90 but I can only seat to an OAL or 2.872 and still have the shells fit my internal magazine. Haven't been able to try them yet I hope they shoot decent. I put 40 grains of IMR 4064 behind it and a Winchester primer.