WelshShooter
Member
- Joined
- Jun 10, 2014
- Messages
- 491
Another update to keep pushing @MCMXI to get more loading done!
I decided that I would stick with 36gr of N150 and played with the seating depth to find a sweet spot. My current base to ogive length of 2.120" places me a few thou off the lands, so I kept seating the bullets back a further 0.003" until I ran out of virgin brass. I was left with 21 cases so that's 7 sets of 3 rounds.
The velocity didn't really change over the whole range which surprised me. What also surprised me is that my initial load was the most precise! But heck, if I didn't try this then I would've always thought "I wonder if I can tighten these groups up with seating depth". Good to know that group position and spread is almost identical between 2.117" to 2.120" (aside from one flier!) so it tells me that the 123gr Scenar likes to be close to the lands on my rifle.
My zero load was some leftover 37gr loads but I notice some ejector swiping on the case head so I don't think I'd like to continue my testing from 36gr up to 37gr.
I'm not going to muck around with primers as I've got a good supply of magnum primers so I guess it's onto making up a batch of 36gr loads to verify repeatability!
@MCMXI, to keep this on topic, have you taken your rifle to the range lately? If not, what's your excuse?
I decided that I would stick with 36gr of N150 and played with the seating depth to find a sweet spot. My current base to ogive length of 2.120" places me a few thou off the lands, so I kept seating the bullets back a further 0.003" until I ran out of virgin brass. I was left with 21 cases so that's 7 sets of 3 rounds.
The velocity didn't really change over the whole range which surprised me. What also surprised me is that my initial load was the most precise! But heck, if I didn't try this then I would've always thought "I wonder if I can tighten these groups up with seating depth". Good to know that group position and spread is almost identical between 2.117" to 2.120" (aside from one flier!) so it tells me that the 123gr Scenar likes to be close to the lands on my rifle.
My zero load was some leftover 37gr loads but I notice some ejector swiping on the case head so I don't think I'd like to continue my testing from 36gr up to 37gr.
I'm not going to muck around with primers as I've got a good supply of magnum primers so I guess it's onto making up a batch of 36gr loads to verify repeatability!
@MCMXI, to keep this on topic, have you taken your rifle to the range lately? If not, what's your excuse?
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