So I have been loading some rounds for my Remington 700 SPS Varmint in 22-250 and have a few questions that mainly concern the OAL. I am using 50gr Nosler Ballistic Silvertip bullets with 38gr of H380. I am using the Modern Reloading Second Edition by Richard Lee and the Nosler Reloading Guide 6 for my as refrences. Modern Reloading lists a <span style="text-decoration: underline">Minumum</span> OAL of 2.350 where as the Nosler reloading manual has a S.A.A.M.I <span style="text-decoration: underline">Maximum</span> OAL of 2.350.
Using the Hornady Lock-N-Load OAL gauge, the bullet ogive touches the lands on my Remington 700 at a reading of 2.130. That in mind, I seated my bullet at 2.090, which puts the ogive .040 off the lands of the rifle. The same bullet in a factory round has an OAL to the ogive of 1.930. That is a .160 difference in OAL to the ogive of my cartridge versus the factory cartridge. This might not seem like much, however it is when you stand the loaded cartridges up side by side.
A few more number to throw out there. The OAL of my cartridge to the tip of the bullet is 2.50. The OAL of the factory cartridge is 2.340. So, my bullet is .150 longer than the Min OAL (2.350) and SAAMI Max OAL (2.350) listed in my manuals.
The bullet is seated into the case neck only .225.
So my question is, am I OK loading so that the bullet ogive is only .040 off the lands or should I be seating the bullet deeper so that the bullet has to make a longer jump? Do I need to worry about excessive pressure,not enough run up or anything else with this load?
Also, I have some 40gr Nosler spritzers that are seated .070 off the lands. At present, I am not sure how much of the bullet is actually in the case neck, however I imagine it is minimal. What should the minimum amount of bullet in the case neck be to be safe?
Below is a picture of a 50gr factory load and my load. Factory is on the left and mine is on the right. Notice the difference in length.
[img:left]http://www.photoshop.com/accounts/bf14b9...779fd5fa2529a0b[/img]
Using the Hornady Lock-N-Load OAL gauge, the bullet ogive touches the lands on my Remington 700 at a reading of 2.130. That in mind, I seated my bullet at 2.090, which puts the ogive .040 off the lands of the rifle. The same bullet in a factory round has an OAL to the ogive of 1.930. That is a .160 difference in OAL to the ogive of my cartridge versus the factory cartridge. This might not seem like much, however it is when you stand the loaded cartridges up side by side.
A few more number to throw out there. The OAL of my cartridge to the tip of the bullet is 2.50. The OAL of the factory cartridge is 2.340. So, my bullet is .150 longer than the Min OAL (2.350) and SAAMI Max OAL (2.350) listed in my manuals.
The bullet is seated into the case neck only .225.
So my question is, am I OK loading so that the bullet ogive is only .040 off the lands or should I be seating the bullet deeper so that the bullet has to make a longer jump? Do I need to worry about excessive pressure,not enough run up or anything else with this load?
Also, I have some 40gr Nosler spritzers that are seated .070 off the lands. At present, I am not sure how much of the bullet is actually in the case neck, however I imagine it is minimal. What should the minimum amount of bullet in the case neck be to be safe?
Below is a picture of a 50gr factory load and my load. Factory is on the left and mine is on the right. Notice the difference in length.
[img:left]http://www.photoshop.com/accounts/bf14b9...779fd5fa2529a0b[/img]