Seating to Ogive

[Sharper2112]

So I'm starting to work up loads with HP-38 for these Acme 122 gr flat points for 9mm. In the photo you can see the Bullet itself and one I've already seated to 1.050. Even at 1.050 there is still a fair amount of shoulder on the Bullet that remains. The round at this length plunks fine in my barrel; hell it even plunked fine at 1.075 but looked silly with so much shoulder showing. My question is, is it necessary to go all the way down to the ogive? Well I'm sure it isn't necessary, but is that the proper thing to do for accuracy or anything? And yes I'm doing a full work up starting well below published minimums for a 124 gr plated rn which is seated at 1.15 since my OAL is much shorter. I'm starting at 3.5 grains. Thanks

 

[vaalpens]

I have not loaded the 122gr Acme bullets in 9mm, but loaded a few in 357sig. With the short nose they are a good fit in 357sig, but will obviously have some shoulder sticking out in 9mm. To me they are similar to the Berry's HBFPTP bullets which I loaded to a 1.060" COL in 9mm. It seems you are in the right area with your COL. In addition to the plunk test, also perform a manual cycle test to make sure you don't have any setback and the bullet will cycle through your gun. Also inspect the nose of the bullet after you have manually cycled it to see if there are any marks that can indicate you need to adjust the COL.

Here is a picture with the same bullet loaded in 357sig with the mouth just below the ogive.

 

[Ruger 15151]

Besides the cool colors and wooden box, is there any reason to buy ACME coated bullets vs. platted bullets from Barry's or Xtreme for nearly the same price?

 

[Sharper2112]

I have not loaded the 122gr Acme bullets in 9mm, but loaded a few in 357sig. With the short nose they are a good fit in 357sig, but will obviously have some shoulder sticking out in 9mm. To me they are similar to the Berry's HBFPTP bullets which I loaded to a 1.060" COL in 9mm. It seems you are in the right area with your COL. In addition to the plunk test, also perform a manual cycle test to make sure you don't have any setback and the bullet will cycle through your gun. Also inspect the nose of the bullet after you have manually cycled it to see if there are any marks that can indicate you need to adjust the COL.

Here is a picture with the same bullet loaded in 357sig with the mouth just below the ogive.
View attachment 233622

Ok great thanks. I appreciate the input

 

[Sharper2112]

Besides the cool colors and wooden box, is there any reason to buy ACME coated bullets vs. platted bullets from Barry's or Xtreme for nearly the same price?

Their service is great, shipping is fast, and the hi-tec coating is better than the plating on plated bullets IMO.

 

[Ruger 15151]

the hi-tec coating is better than the plating on plated bullets IMO.

Why do you feel coating is better than plating?

 

[ArchAngelCD]

I also like lead and coated lead bullets better than plated bullets. They are more accurate in my guns, cost less and are easier to load for me. I have never been a fan of plated bullets so I'm glad plated bullets became available from commercial casters.