Question for the experts...22-250 - The HuntingPA.com Outdoor Community
 
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post #1 of 6 (permalink) Old 05-29-2017, 08:19 PM Thread Starter
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Question for the experts...22-250

I have been experimenting with my Remington 700 vlss 22-250 the last few weeks while I'm waiting for a new gun to get finished. I found a load with Varget and 55 grain Blitzkings that shoots better than I ever thought myself or a factory gun would shoot. However, it is pretty slow and over 2 grains shy of the max published data. I figured I could probably find another node or 2 before I hit high pressure so I started working up. Max charge varies from 36.5 - 37.0 in my manuals so I started at 36.0. I shot this morning and it was 67*. 36.6 showed promise with all 3 shots touching. Pressure seemed fine. I worked up to 37.2 and the groups continued to get better and I had no pressure signs. I made some more loads around 36.6 and started increasing in .1 increments over 37.2 to see when I maxed out. I went back to the range at 6:30 and it was now 82*. First group was 36.5 and I got a sticky bolt lift and an ejector mark on my case. My velocity in the morning was around 3675 with 36.6. In the afternoon it was 3725 with 36.5. I thought Varget was not effected by temperature but that is the only thing that changed. Anyone else ever experienced this with Varget?
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post #2 of 6 (permalink) Old 05-30-2017, 05:21 AM
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Rather than take advice from us folks on site i would just call and talk to a person at Hodgdon Powder Co.

WILLY P
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post #3 of 6 (permalink) Old 05-30-2017, 08:29 AM
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I have had heat affect different powders to the extent that it caused pressure signs and affected group size. I do use Varget but I cannot remember any specific instances while using Varget.

In the past I loaded to get the highest velocity but I have changed and now I want the smallest groups. There is no critter out there who is going to know the bullet left the barrel at only 3500 fps and not 3600 fps and those paper targets don't care.

Good luck!

Last edited by Dogface; 05-30-2017 at 08:31 AM.
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post #4 of 6 (permalink) Old 05-30-2017, 02:11 PM Thread Starter
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I am not worried about finding the fastest load. I was hoping to have more than one to test at longer distance. All my shooting has been at 100 yards so far. I have been using Varget exclusively up to this point because of its advertised temperature stability. If it is in fact being effected by temperature then I will test some more powders.
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post #5 of 6 (permalink) Old 05-31-2017, 06:43 AM
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The load data on Hodgdons website states 36.5 as the max load using Varget.I was using Imr 4895 but tried Imr 8208 xbr.Temp stable powder with more velocity than Varget and uses less powder to do so.I can't see 15 degrees in temp doing that unless you were right at your max.How are you weighing charges?

Bob Seger,till it shines.
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post #6 of 6 (permalink) Old 05-31-2017, 10:25 AM Thread Starter
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I am just using a RCBS beam scale. I knew working up that 36.5 was their max. I just don't understand how I got lower velocities and pressure at higher charges earlier in the day. Could the fact that I had more shots through the rifle leading up to the higher charges expanded the barrel a little resulting in less pressure?
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