.22-250 Load ?

Only one way to find out. Try it and see what happens.

Make a dummy round and feed it from the magazine 10 or so times and see if it can take it.

Theinkman said:

I know that for proper neck tension, it is recommended that there be about one caliber length of the bullet in the case neck. I am way short of that obviously but wondering if .100 is enough? Any thoughts from the experts?

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Well, I'm not an expert, but I have a question for you. Have you tried to shoot a load at the recommended COL for that bullet? If not, maybe give it a try. It might work just fine and you won't have to worry about inadequate neck tension.

I've loaded a few rounds with little 'insertion" in the neck. Nothing untoward happens from shooting them. However, they seem to be too long for the magazine and they seem to be easy to deform, so care must be observed with transport and handing.

They don't blow up, although if one doesn't have quite enough resistance to bullet release the powder may not burn right, completely or promptly. At worst, the bullet stuck in the barrel, a pain in the foot but not a tragedy. And, when ejecting a non fired round, it may hang up on the action.

I show the oal of 2.350. Have you tried recommended length.

Gotcha. Heck I'd play around with a long oal too but for normal run around ammo I'd probably stick with recommended data. Have an older 700 myself bit havent played much with oal.

Theinkman said:

I'm loading some new to me Sierra 45gr spitzers in .22-250. Make up a dummy round with the bullet seated out long then colored the exposed bullet with a Sharpie to figure out at what length I am touching the rifling. Even though the bullet was seated long, I still did not touch the rifling. OK with that but only have about .102 of the bullet in the case neck.

I know that for proper neck tension, it is recommended that there be about one caliber length of the bullet in the case neck. I am way short of that obviously but wondering if .100 is enough? Any thoughts from the experts?

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There is nothing dangerous about loading it that way and accuracy may be fine. Having only 0.102 inches of the bullet in the case would likely cause problems sooner or later especially if chambered from a magazine several times. If you are set on using 45 grain spitzer, I would seat a little deeper and see if accuracy was satisfactory.

I use Speer 70 grain Semi Spitzers in my 22-250 loads. I suspect you could seat them deep enough. Accuracy is excellent even out of a 1:12 twist barrel. My furtherest shot on a deer I've taken was 360 yards with that bullet and it was DRT with a high lung shot.

Give the Sierra 60gr HP a shot. They were designed for the 22-250 with a 14 twist and are longer which should get you closer to the lands.

700 throats are usually very long,Sometimes there's not as much advantage to seating close to the lands as a lot of guys make it out to be.You won't likely gain anything by trying to seat that shallow,the bullet runout will offset any advantage seating shallow will get you.Seating bullets deep enough to keep runout low always works for me.I would try seating them at various depths and see how they shoot.You have to have some neck tension or you will have velocity variances.I just finished doing a load workup for a client in a M700 in 300 Weatherby and the bullets are .100 off the lands and it shoots very well like that.Weatherby rifles have had ridiculous freebore in them for years to keep pressure down and to get maximum velocity.If you're going after the ultimate in accuracy in a 22-250,you would be better off going with a 52 or 53 grain match bullet.45's won't shoot so great anyway.

Good luck. I've loaded for 4 Remington .22-250 rifles. All had long throats and I seated bullets further out with a good amount of bullet in the case. Some of the worst ammo I ever made. Wasn't till others suggested using the length in the book that the accuracy came in.

Let us know how this works for you but I have a pretty good idea of the outcome.

My Rem700 likes standard COL with 50 gr bullets - 1:12 - anything lighter and the groups open up-
I get no increase in accuracy buy loading the bullets long - and sometimes opposite.

Congrats!