45 Bullet selection under New CMP Service Pistol rules
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John Dervis
Wobbley
6 posters
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45 Bullet selection under New CMP Service Pistol rules
With the recent changes to the ammunition rules to qualify as a “Service Pistol” ( any safe ammo), it brings up the question of best bullet selection for service pistol. Prior to this rule change it was pre-determined that the best was a 185 JHP. Many shooters shot that for all 45 stages because the bullets were so good. Now with LSWC seeming to be acceptable for CMP service pistol, the question is now re-opened one can presume. So let’s perhaps discuss this. To keep the scope manageable, let’s limit to generic bullets not any specific brand.
I’ll start. I’ve had such good results with 180 and 200 Cast LSWC, that I’d choose those and 200 grains specifically. I just feel that the 200 LSWC is the best all-around bullet for me.
I’ll start. I’ve had such good results with 180 and 200 Cast LSWC, that I’d choose those and 200 grains specifically. I just feel that the 200 LSWC is the best all-around bullet for me.
Wobbley- Admin
- Posts : 4801
Join date : 2015-02-13
Re: 45 Bullet selection under New CMP Service Pistol rules
When I was chasing points I would use my Ball gun for everything CF. I would use my normal lead wad loads which for me is a 200 gr SWC over 3.9 clays for long line and a 185 gr WCBN over 3.7 BE for short. I would always do better with that combination vs my hardball load which was a 185 gr JHP over 4.5 BE. Some of it could have been fatigue or nerves etc but results seemed better even though the gun was the same and that JHP load was good.
If I were to shoot a hardball match again under these rules, I would use my wad loads for sure.
John
If I were to shoot a hardball match again under these rules, I would use my wad loads for sure.
John
John Dervis- Posts : 538
Join date : 2012-08-29
Age : 55
Location : Sheridan, Il.
Re: 45 Bullet selection under New CMP Service Pistol rules
I practice with HPLSWC's 185's and same powder weight as the JHP's at both 50 and 25. I like the rear weighted bullets.
I just need a hard leg.
Skid
I just need a hard leg.
Skid
Skid- Posts : 282
Join date : 2014-05-19
Age : 62
Location : Northern Lower Mi
Re: 45 Bullet selection under New CMP Service Pistol rules
delete
Last edited by Jack H on 1/9/2023, 7:39 pm; edited 1 time in total
Jack H- Posts : 2698
Join date : 2011-06-10
Age : 75
Location : Oregon
Re: 45 Bullet selection under New CMP Service Pistol rules
Err, I believe the selection criteria will be whatever generates the smallest groups, and best economics that fit you and the gun.
CR10X- Posts : 1777
Join date : 2011-06-17
Location : NC
Steve B and R*P*DR* like this post
Re: 45 Bullet selection under New CMP Service Pistol rules
I see here mention of "cast" specifically in relation to lead bullets without a jacket or plating. Is the use of that term to contrast vs swaged lead bullets? My vague understanding is that swaged bullets are soft and are very consistent. Where cast could be soft and could be consistent, but not necessarily. Wobbley et al do we intend to make this distinction vs swage when using the term Cast, and generally agree with the above? The Zero brand just for example I understood to be swaged and resulting very consistent forming of the projectile. They are very soft to scratching even with the fingernail.
SingleActionAndrew- Admin
- Posts : 671
Join date : 2019-11-19
Location : IL, USA
Re: 45 Bullet selection under New CMP Service Pistol rules
SingleActionAndrew wrote:I see here mention of "cast" specifically in relation to lead bullets without a jacket or plating. Is the use of that term to contrast vs swaged lead bullets? My vague understanding is that swaged bullets are soft and are very consistent. Where cast could be soft and could be consistent, but not necessarily. Wobbley et al do we intend to make this distinction vs swage when using the term Cast, and generally agree with the above? The Zero brand just for example I understood to be swaged and resulting very consistent forming of the projectile. They are very soft to scratching even with the fingernail.
Your understanding is correct.
Cast bullets can have air voids inside if care is not taken during the casting process. These voids affect accuracy by a) varying bullet weight and b) the spin of the bullet can be affected and that will throw the bullet of course. You can change the hardness by adding other metals and end up with a really hard bullet if that’s what you are looking for but for our purposes, softer lead works fine (maybe even best). Hard cast bullets are used for high velocity loads for long range shooting or hunting.
Swaged bullets are formed by cutting a lead wire and pressing the bullets into shape. They are soft but it’s the fact they are consistent without any voids that makes them accurate.
I have mostly used Swaged bullets in my bullseye career. Star and Zero are both Swaged and are what I use. I do have some stock of cast bullets both 200 gr and 185 gr but haven’t tried either one just yet to see how they perform.
John
John Dervis- Posts : 538
Join date : 2012-08-29
Age : 55
Location : Sheridan, Il.
Re: 45 Bullet selection under New CMP Service Pistol rules
Cast or swaged is optional to your choice. I personally prefer cast because I believe the bullets are less prone to leading and that means less load difficulties over all. That said, I do have and shoot swaged lead bullets.
Wobbley- Admin
- Posts : 4801
Join date : 2015-02-13
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